How to correct checksum after editing GM's calibration files

Update 2/October/2025

You no longer need to manually correct the checksum of the GM calibration files. You can automatically correct the checksum of modified GM calibration files online using this checksum tool, which was created by a CameraLoops member.

The online checksum tool can be accessed from the website's top menu, under the "Tools & Games" button, or via the following web link. GM Online Checksum Calculator

Massive thanks to ECU-Online.com

Screenshot 2025-10-02 at 7.33.39 am.jpg

In this tutorial, I will explain in steps how to correct the checksum after editing a GM module calibration file.

This process illustrates correcting the checksum for the first four bytes.

It's beneficial to read up on these other tutorials to familiarise yourself with GM's calibration files concept if you're new.

Tools you will need.

Hex Editor Neo

Step 1.

Open the calibration file in Neo and edit your file.

Set Predefined Layouts as Expert User Layout.

Screenshot 2021-08-01 at 11.43.56 am copy.png

Step 2.

Select all the codes in the calibration file except the first four bytes/code.

Step 3.

At the bottom of Neo click Checksum.

Step 4.

In Neo's checksum window, change the option: Whole document to Selection only.

Step 5.

Select Sum of Big-Endian 16-bit value

Step 6.

Click the Refresh button.

Step 7.

Copy the last 4 digits, which is: 9730

Step 8.

Convert 9730 into Binary code, then copy paste the binary code in a text editor.

Step 9.

Now you need to create a reverse copy of the binary code: 1001011100110000, see the example below.

Step 10.

Convert the reverse binary code 0110100011001111 into hexadecimal code, which equals to 68cf

Step 11.

Now you need to add 1 to the hexadecimal code, which looks like this 68cf+1=

Use this online calculator to do the calculation.

68cf+1=68d0

Screenshot 2021-08-02 at 12.25.20 am copy.png

Step 12.

Now you have 68d0

Replace the first four unselected bytes/code in the calibration file with 68d0.

Step 13.

The checksum has been corrected.

Save the calibration file and program your calibration package to the module using GM DPS.

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110 Comments

Recommended Comments

+Robi_X

+Contributor

March 5, 20242 yr

GM Car Hacking Expert

Contributor

Maybe there is a Checksum but is a different kind than Cal files.

Or you edit something wrong, post Org and Mod eeprom.(What do you wanted to Change?)

Quote

+Robi_X

+Contributor

March 5, 20242 yr

GM Car Hacking Expert

Contributor

Maybe i'm wrong shoud the eeprom look like that (so many 0x00/0xFF/0x20?)

There is no Vin or PIN?

image.png.222bfade410f7f9b8a966edfdf423b3c.png

Quote

+Arbe_gtc

+Contributor

March 5, 20242 yr

GM Car Hacking Expert

Contributor

45 minutes ago, Rustam Abdullayev said:

@Arbe_gtcThank you for the fast answer. Does it mean eprom no need for a checksum?

But when I tried to edit EPROM the check it in DPS to get info I got the result that EPROM fault.

In the bin file that you shared, there is no VIN or PIN... is that BCM new? used? It seems to be corrupted, but there is some information in the BIN.

image.png.8b8f5b663b4b01c82e316a7444ccf719.png

Quote

Rustam Abdullayev

Member

March 6, 20242 yr

@Robi_XHello, thank you for asking I am going to return the BCM to the virgin. Yes, there is no VIN due to this is New BCM.

There is the EPROM which I am going to return to virgin

BCM EPROM QWE.bin

Quote

Rustam Abdullayev

Member

March 6, 20242 yr

@Arbe_gtcThis is EPROM from the new BCM. I wanted to discover how to return the used BCM to virgin. You can say that I can clone the EPAOM and FLASH from new to used, but I wanted to discover how to return virgin with the original serial number which is in the used BCM. Here is EPROM which I going to return to the virgin.

BCM EPROM QWE.bin

Quote

+GM-Enthusiast

+Contributor

March 6, 20242 yr

GM Car Hacking Expert

Contributor

5 hours ago, Rustam Abdullayev said:

@Arbe_gtcThis is EPROM from the new BCM. I wanted to discover how to return the used BCM to virgin. You can say that I can clone the EPAOM and FLASH from new to used, but I wanted to discover how to return virgin with the original serial number which is in the used BCM. Here is EPROM which I going to return to the virgin.

BCM EPROM QWE.bin 4 kB · 1 download

Just write virgin file to eeprom,, program bcm ,, program immobiliser with existing transponder key,,done

Workshop Services

Car Hacking Services I Provide For General Motors Vehicles.

GM Remote Diagnosing and Troubleshooting
All GM Modules Programming
GM ECM/TCM Tuning
Auto Mechanic Workshop

Quote

+Mindaugas Cernius

+Contributor

March 7, 20242 yr

Contributor

The checksum calculation can be different for everyone. For example, in BCM Opel using 16-bit Big-Endian, you need to add 8000 to the resulting result to get the correct checksum. We get Buick's checksum right away without adding anything. Before changing, calculate the checksum and check it to know the correct method.

Quote

Rustam Abdullayev

Member

March 10, 20242 yr

@Mindaugas CerniusThank you for your advice. But how to calculate the checksum before changing. I'm a novice in this matter

Quote

+Arbe_gtc

+Contributor

March 10, 20242 yr

GM Car Hacking Expert

Contributor

29 minutes ago, Rustam Abdullayev said:

@Mindaugas CerniusThank you for your advice. But how to calculate the checksum before changing. I'm a novice in this matter

Read this thread from the first message and you cand find the answer.

Quote

+BLKATSG

+Contributor

March 16, 20242 yr

GM Car Hacking Expert

Contributor

Anyone have any tips on how to find the checksum for a file that doesn't follow the norm?

Here is the cal file I'm working with.

1-Check-Sum.bin

Quote

+codebuilder

+Contributor

March 17, 20242 yr

GM Car Hacking Expert

Contributor

12 hours ago, BLKATSG said:

Anyone have any tips on how to find the checksum for a file that doesn't follow the norm?

Here is the cal file I'm working with.

1-Check-Sum.bin 511.97 kB · 2 downloads

Is that an OS file? What module is it for as that would help too. Some of these checksums can get pretty complex!

I'll take a guess, is it a cluster 🙂 haha

image.png.b799906041feecd50bd7c952c7488d24.png

Quote

+BLKATSG

+Contributor

March 17, 20242 yr

GM Car Hacking Expert

Contributor

Yes it is a cluster OS file haha, but an older one.

6G2EC57Y99L199784 (this is a 2009 vin, but it was a split year so this is the older cluster)

This is one for a 2008 Pontiac G8, the 2009 G8 follows the standard checksum system.

Quote

+BLKATSG

+Contributor

March 22, 20242 yr

GM Car Hacking Expert

Contributor

I still haven't figured this out, and I've tried a bunch of combos. Admittedly I'm not very fluent in checksums.

Quote

+karolputowski

+Contributor

April 3, 20242 yr

Contributor

On 9/20/2021 at 9:52 PM, d533902 said:

Hi Troy, you have some unnecessary steps there. Why are you switching from Hex to Binary?

68cf XOR FFFF = 9730

XOR function is probably built into your calc and its also built into windows calculator when in programmer mode

Not the best contribution but sharing what I have

I can confirm that this trick is working for BCM calibrations.

Just use Windows Calculator, type last 4 hex symbols from Hex Editor calculated checksum, select bitwise -> XOR and type FFFF.

The result is the checksum for file.

Quote

+tjshadyluver

+Contributor

May 31, 20242 yr

Contributor

Which bytes in a BCM Calibration, is the Checksum? Is it in the beginning? There are many, many bytes in every Calibration.

Quote

+Arbe_gtc

+Contributor

May 31, 20242 yr

GM Car Hacking Expert

Contributor

1 hour ago, tjshadyluver said:

Which bytes in a BCM Calibration, is the Checksum? Is it in the beginning? There are many, many bytes in every Calibration.

in the first message of this thread, in Step 12.

You have the position of the checksum

Quote

+tjshadyluver

+Contributor

May 31, 20242 yr

Contributor

Lol yeah I went to page 1 and read from the beginning! So cool to have learned that. I'm gonna play soon.

Quote

+Mindaugas Cernius

+Contributor

August 30, 20241 yr

Contributor

Hello colleagues. After calculating the CheckSum I got the result f2, how do I write the first four bytes?

Quote

+Robi_X

+Contributor

August 30, 20241 yr

GM Car Hacking Expert

Contributor

Quote

+Dan79

+Contributor

October 11, 20241 yr

Contributor

Hi the calibration file that being edit is that the direct file we get from ex sps cache or is it after we have done DPS archive zip file and then we edit the calibration file?

Quote

+Dan79

+Contributor

October 11, 20241 yr

Contributor

Hi the calibration file that being edit is that the direct file we get from ex sps cache or is it after we have done DPS archive zip file and then we edit the calibration file?

Quote

+Arbe_gtc

+Contributor

October 11, 20241 yr

GM Car Hacking Expert

Contributor

27 minutes ago, Dan79 said:

Hi the calibration file that being edit is that the direct file we get from ex sps cache or is it after we have done DPS archive zip file and then we edit the calibration file?

the cache files are zipped. you need unzip it with 7zip and you can edit it, after edit, create the zip package for DPS

Quote

+Dan79

+Contributor

October 11, 20241 yr

Contributor

thx so i unpacked the file with 7zip and got the bin file, edit that now but what now? most a zip the file again or can i use it directly to create zip package dor DPS?

Quote

+Arbe_gtc

+Contributor

October 11, 20241 yr

GM Car Hacking Expert

Contributor

46 minutes ago, Dan79 said:

thx so i unpacked the file with 7zip and got the bin file, edit that now but what now? most a zip the file again or can i use it directly to create zip package dor DPS?

use SPAT option in DPS to create the package

Quote

+Dan79

+Contributor

October 11, 20241 yr

Contributor

Whhat option in SPAT do i need to use? its a .bin file and cant find any option to zip that back so its like a original sps cache file

Quote

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- 5 comments
- 6,641 views
How To Activate Video In Motion, Languages, RVC Guide Lines In The HMI 2.5 With The DPS Tool
How To Activate Video In Motion, Languages, RVC Guide Lines In The HMI 2.5 With The DPS Tool

Troy · June 18, 20233 yr

Video In Motion For All GM Vehicles That Use The HMI 2.5 Module. The video still plays when the vehicle is driving in drive mode. Watch the video below to see the process. video_in_motion.mp4 These files can be used with the GM DPS tool to: Activate Video in Motion. Activate both§ North American and European languages on the infotainment and IPC screens. (The language selected in infotainment settings is set in the IPC). Activate reverse camera guide-lines. Activate the reverse camera a
Troy

June 18, 20233 yr

+Marcin Tulowiecki

April 23Apr 23
- 17 comments
- 7,638 views
How to create GM DPS Type4 Application files manually
How to create GM DPS Type4 Application files manually

Troy · June 16, 20233 yr

How to create GM DPS Type4 Application files manually. In this tutorial, I demonstrate how to manually create GM Type4 Application files, which can be used with DPS to program a module's Configuration and Setup programming. Great for those who want to set up a module without using the GM online SPS service. A fully detailed course tutorial that illustrates the process. The tutorial can be purchased from the web link below.
Troy

June 16, 20233 yr

+GM-Enthusiast

August 11, 2025Aug 11
- 4 comments
- 7,021 views
CameraLoops.com Now have An App
CameraLoops.com Now have An App

Troy · April 20, 20233 yr

CameraLoops.com push notifications. You can now install CameraLoops.com as an app on your phone and tablet. It's not in the app store: it's called a Progressive Web App, or PWA for short. The advantages are you can get various push notifications on your phone or tablet when someone replies to your post, sends you a message, etc. The app will work on iOS devices that have iOS v16.4 and up or Android v10 I think. For iOS device On iOS devices, open CameraLoops.com in Safari and click the s
Troy

April 20, 20233 yr

Troy

April 20, 20233 yr
- 1 comment
- 5,005 views
How To Download Calibration Files From ACdelco TLC SPS For Free, Without Taking Up A VIN Slot
How To Download Calibration Files From ACdelco TLC SPS For Free, Without Taking Up A VIN Slot

Troy · April 10, 20233 yr

In this article, I demonstrate how to download GM calibration files for any VIN "FREE" from the ACDelco SPS account without taking up a VIN slot. Doesn't GM realise that making things very expensive fuels people's ambition to find a workaround?🙂 This information can only be viewed by members with a +Contributors group name. Click the link below to view the information.
Troy

April 10, 20233 yr

+Mikluha_Maklay

February 22Feb 22
- 22 comments
- 15,293 views
How to change VIN & PIN in GM ECM/ECU Modules Using The DPS Tool
How to change VIN & PIN in GM ECM/ECU Modules Using The DPS Tool

Troy · March 21, 20233 yr

As they say, never give up. Whenever you face a brick wall, frustrated with nowhere to turn, eat some food, get some rest, and then tread on some more. The ECM VIN and PIN change via DPS have had me baffled for some time. Today I had another go at it, and after drinking seven cans of Redbull and a lot of thinking, I solved the puzzle/hack. Changing the VIN and PIN in a used secondhand GM ECM module is very important for those who want to recycle GM ECM modules. With this solution, you can achiev
Troy

March 21, 20233 yr

Troy

January 10, 20242 yr
- 14 comments
- 16,104 views
Hacking GM Global-B modules
Hacking GM Global-B modules
Troy · February 17, 20233 yr

I'm on a mission to create a bench setup for some GM Global-B architecture modules. My aim is to figure out some method which can be used to recycle GM Global-B modules, including changing VIN and PIN. I have some Global-B modules coming from the USA, an IPC, BCM and an ECM for starters. Things I need to know before those modules arrive. I need to know if I can connect a Global-B BCM direct to the power and Canbus data line and have DPS read the VIN, similar to the Global-A modules? Will I n
Troy

February 17, 20233 yr

CHANS

April 20Apr 20
- 57 comments
- 23,682 views
GM DPS Archive Creator Tool Version 2
GM DPS Archive Creator Tool Version 2

Troy · February 9, 20233 yr

I am pleased to announce the release of the GM DPS Archive Creator Tool Version 2. The tool can be used to automatically create the DPS archive file from the GM SPS cache folder calibration files and is great for those who want to quickly create a DPS archive file for programming a general motors electronic module. This tool is locked to the PC hardware ID. After purchasing you will need to install the tool and send a private message including your PC hardware ID to @Troy to receive your activa
Troy

February 9, 20233 yr

+uglyoldbastard

March 31Mar 31
- 6 comments
- 7,292 views
Vauxhall, Opel Insignia, Astra 1.6 SIDI A16XHT squealing noise, PCV valve, Camshaft seal noise fix.
Vauxhall, Opel Insignia, Astra 1.6 SIDI A16XHT squealing noise, PCV valve, Camshaft seal noise fix.

Troy · December 27, 20223 yr

Recently my Insignia developed a squealing noise coming from the engine bay. The noise was coming from the camshaft seal and PCV valve located in the engine rocker cover. Due to the faulty PCV valve, the car was building up a lot of vacuum in the engine, sucking air through the camshaft seal. From reading on the web, this is a known GM fault that will happen over time in the 1.6 SIDI A16XHT engine. In the USA, GM had a service bulletin regarding this issue on the Buick Cascada, which uses the s
Troy

December 27, 20223 yr

+Arbe_gtc

January 21, 20233 yr
- 5 comments
- 6,089 views
FT0108A, FT0108B Unlock Vin Change, Remove The Theft Lock, Denso Ten Radio FT0108A 84691615,
FT0108A, FT0108B Unlock Vin Change, Remove The Theft Lock, Denso Ten Radio FT0108A 84691615,

Troy · November 10, 20223 yr

This DPS file will remove the theft lock by changing the VIN in the Denso Ten Radio FT0108A, FT0108B, 84691615 that comes installed in Chevrolet Malibu, Cruz and other GM vehicles. The file instructs the radio module to learn the VIN stored in the BCM module. This file is useful when recycling a used radio module into a GM vehicle. This file does not work for the manufacturer Fujitsu Ten FT0108A. This file only works for the manufacturer: Denso Ten FT0108A and FT0108B. This file does not work on
Troy

November 10, 20223 yr

Troy

October 18, 20232 yr
- 1 comment
- 5,332 views
LC7F LC7S Intellilink R4 LG SilverBox Radio ASM-Receiver VIN Change UNLOCK Insignia-B Astra-K.
LC7F LC7S Intellilink R4 LG SilverBox Radio ASM-Receiver VIN Change UNLOCK Insignia-B Astra-K.

Troy · October 23, 20223 yr

This DPS file will change the VIN in the LC7F and LC7S SilverBox RADIO ASM-RECEIVER that comes installed in some insignia-B, Astra-K and other GM vehicles. The file instructs the radio module to learn the VIN that's stored in the BCM module. This file is useful for when needing to installing a used LC7F or LC7S radio module into a GM vehicle.
Troy

October 23, 20223 yr

jamjam

June 17, 20242 yr
- 10 comments
- 8,701 views
Troll Chris White Wams GTPprix harassing CameraLoops members
Troll Chris White Wams GTPprix harassing CameraLoops members

Troy · September 29, 20223 yr

A Troll who uses this username GTPprix on every GM vehicle forum and uses these email addresses [email protected], [email protected], [email protected] and [email protected] is using this forum and website to harass members with fake scare tactics emails. I caught this TROLL a few times and banned him. The Troll is Chris White aka Wams GTPprix from Detroit USA. His business address is 30773 Milford Road #163 New Hudson, MI 48165. He owns this website https://www.w
Troy

September 29, 20223 yr

Troy

October 5, 20223 yr
- 14 comments
- 4,593 views
DPS VIN & PIN Change Service For General Motors Vehicle Modules
DPS VIN & PIN Change Service For General Motors Vehicle Modules

Troy · September 15, 20223 yr

This service is for folks who need to change the VIN and the PIN in a used secondhand General Motors electronic vehicle module, which is not already listed in the downloads section. I strive to send you a private message with the DPS VIN or PIN change file between 30 minutes to a few hours, depending on your purchasing time and where I am located at the given time. DPS VIN Change Service You will receive a DPS archive file which can be used to change the VIN in any of these modules listed belo
Troy

September 15, 20223 yr

Troy

September 25, 20241 yr
- 19 comments
- 17,311 views
GM VIN Number To PIN Code/CarPass Service
GM VIN Number To PIN Code/CarPass Service

Troy · September 2, 20223 yr

GM VIN Number To PIN Code/CarPass Service This service is for generating the 4-digit security PIN code/Car Pass from the VIN for all General Motors brands of vehicles. This is a great option for folks who wants to generate a few PIN CODE and is on a budget. After purchasing, I strive to send you a private message with the PIN code between 30 minutes to a few hours, depending on your purchasing time and where I am located at the given time. Purposes for this service You can use this service if
Troy

September 2, 20223 yr

Troy

November 30, 20232 yr
- 2 comments
- 6,177 views
How to change VIN in GM ECC-HVAC Electronic Climate Control module using GM DPS
How to change VIN in GM ECC-HVAC Electronic Climate Control module using GM DPS

Troy · September 2, 20223 yr

Changing the VIN in a used ECC-HVAC Electronic Climate Control module is vital for folks who want to recycle used secondhand GM electronic vehicle modules. Using this custom DPS file, you can achieve that. Watch the video to see the process ECC-HVAC VIN change for most GM 2-byte seed modules.
Troy

September 2, 20223 yr

Troy

July 26, 20241 yr
- 4 comments
- 5,017 views
GM HMI 2.5 Activate Video In Motion, SAT-NAV In Motion, Track-Pad, Rear Camera And Climate Control using GM DPS
GM HMI 2.5 Activate Video In Motion, SAT-NAV In Motion, Track-Pad, Rear Camera And Climate Control using GM DPS
Troy · September 2, 20223 yr

You can use this HMI 2.5 DPS calibration archive file to activate video in motion, SAT-NAV in motion, Track-Pad, rear camera, rear camera always on and climate control. Option features ✅ Video in motion: Watch videos while the car is driving ✅ SAT-NAV in motion: Type address in the SAT-NAV while the car is driving. ✅ Track-Pad: Track-pad activated. ✅ Rear camera: Reverse camera with guidance lines and park assist symbols. ✅ Rear camera always on: Touchscreen icon to activate rear camera alw
Troy

September 2, 20223 yr

Troy

June 18, 20233 yr
- 42 comments
- 10,056 views
How to change PIN CODE in GM's Vehicle Modules using GM DPS
How to change PIN CODE in GM's Vehicle Modules using GM DPS

Troy · August 1, 20223 yr

For some time now, I've been trying to figure out the PIN CODE change option using DPS with no success. I had some free time today, so I had another go at the PIN CODE puzzle. I solved the puzzle after drinking two cans of RedBull and thinking a bit. Changing the PIN CODE in GM vehicle modules is now possible using the DPS tool. This option is excellent for folks who want to recycle used secondhand GM vehicle electronic modules. Without a PIN code change in a used IPC, BCM, EBCM, and SDM, you
Troy

August 1, 20223 yr

Ahmad Zabalawi

February 2Feb 2
- 3 comments
- 8,730 views
SDM AirBag Vin Change With GM DPS
SDM AirBag Vin Change With GM DPS

Troy · July 14, 20224 yr

Changing the VIN in GM SMD AirBag modules is vital when recycling a used module. You can achieve this by using this DPS file. These files only work with GM Global-A vehicles. Play the video to see the process. GM Global-A 2 byte seed file GM Global-A 5 byte seed file
Troy

July 14, 20224 yr

Troy

April 5, 20242 yr
- 5 comments
- 6,940 views
Harman INFO3, INFO3.4, INFO3.5, INFO3.6, INFO3.7, INFO3.8 CSM MY19, MY21 SiriusXM GM Radio HMI Unlock Vin Change With DPS
Harman INFO3, INFO3.4, INFO3.5, INFO3.6, INFO3.7, INFO3.8 CSM MY19, MY21 SiriusXM GM Radio HMI Unlock Vin Change With DPS

Troy · June 18, 20224 yr

Harman INFO3, INFO3.4, INFO3.5, INFO3.6, INFO3.7, INFO3.8. CSM MY19, MY21 SiriusXM GM Radio HMI, Unlock Vin change with DPS This file will unlock and change the vin for the radio module in the photos below. This file does not work on GM Global-B UDS VIP 12-byte seed vehicle radios. This file only works for GM Global-A vehicle radios. The DPS radio VIN change file can be purchased at the web link below ID7SF Silverbox RADIO ASM-RECEIVER LG Electronics. Chevy Chevrolet Spark 2019, 2020, 2021, V
Troy

June 18, 20224 yr

Troy

June 9, 20242 yr
- 24 comments
- 6,790 views
How to change the VIN number in GM K43 electric Power steering control module using DPS
How to change the VIN number in GM K43 electric Power steering control module using DPS
Troy · February 21, 20224 yr

Changing the VIN in a used GM K43 electric Power steering control module is vital for car parts recycling. You can achieve it by using this special DPS vin change file. Watch the video, which demonstrates the quick and fast process. Power Steering Module VIN Number Change DPS File EPS VIN Change For Cadillac Escalade 2018. 2-Byte Seed DPS Archive
Troy

February 21, 20224 yr

+RioCuartoScanner

September 22, 2025Sep 22
- 29 comments
- 12,466 views
How to change mileage in GM's cars using GM's DPS
How to change mileage in GM's cars using GM's DPS
Troy · February 9, 20224 yr

Changing the mileage in GM vehicles is vital when recycling a used BCM module. Using the GM DPS software and this particular DPS type4 application file, you can achieve this. Watch this video for the process. DPS Type4 mileage change file
Troy

February 9, 20224 yr

Troy

December 18, 20241 yr
- 57 comments
- 16,305 views
How to repair Rode video mic pro plus broken USB charge port.
How to repair Rode video mic pro plus broken USB charge port.

Troy · February 5, 20224 yr

The USB charge port on the Rode video mic pro plus is prone to breaking off the circuit board due to insufficient soldering. This is a major manufacturers fault that has happened to many people, including myself. A simple fix is to take the mic apart then re-solder the USB part back onto the circuit board. The mic housing is held on by three plastic clips, which can be pried off using a flat head screwdriver or a pry tool. Check the below photo for the clips location. Resoldering is doable for a
Troy

February 5, 20224 yr

Troy

February 5, 20224 yr
- 0 comments
- 4,180 views
Type4 applications for GM's DPS
Type4 applications for GM's DPS
Troy · February 4, 20224 yr

The Type4 Application functionality within DPS allows the user to run a pre-defined software procedure on GM's motor vehicle modules offline without using a GM's online SPS subscription. These procedures typically execute a setup/learn function that requires user interaction. Examples: Oil Life Setup, BPP Learn, Clutch Position Learn, Key Immobiliser Learn, etc. The file in the web link below can be used to display the Type4 Tab option in DPS. Change Mileage In GM BCM Modules, Change
Troy

February 4, 20224 yr

Troy

August 29, 20232 yr
- 36 comments
- 18,538 views
A message to General Motors and its friends
A message to General Motors and its friends

Troy · November 2, 20214 yr

A message to General Motors and that Lurker clown who keep lurking around on this website. General Motors: Now I have your full attention, I took some time out of my very busy schedule to respond to you in the public domain. First off, your efforts are very puny. Your methods. You tried to remove this website by reporting this website to its hosting provider as a site hosting copyrighted items. You reported those Youtube and Vimeo tutorial videos as holding copyrighted items. You harassed a
Troy

November 2, 20214 yr

Troy

November 9, 20241 yr
- 15 comments
- 36,653 views
GM Development programming system, aka DPS
GM Development programming system, aka DPS

Troy · October 19, 20214 yr

GM Development programming system, aka DPS, is an in-house software that General Motors technicians use to develop software for GM vehicle electronic modules. DPS functions similarly to the GM SPS client. By itself, DPS can only perform the basic function of reading the ECU VIN and basic information. To program a module using DPS, you must acquire the corresponding calibration files and custom DPS scripts to complete any DPS programming. Only limited information, and no complete documentation, i
Troy

October 19, 20214 yr

Troy

December 26, 2025Dec 26
- 2 comments
- 53,105 views
How to get cheap GM GDS2 for eternity.
How to get cheap GM GDS2 for eternity.
Troy · September 29, 20214 yr

GM has fixed the vulnerability. This file no longer works with the new GM GDS2. More info here. Global Diagnostic System 2 aka GDS2. GDS2 is GM's motor vehicle diagnostic software used by auto mechanics to perform diagnostics, including reading fault codes, resetting the vehicle's electronic module and various other configurations. In order to have access to GDS2, you have to pay a subscription fee to GM. In this tutorial, I demonstrate how to pay once and have GDS2 access for eternity. GDS
Troy

September 29, 20214 yr

Troy

January 31, 20251 yr
- 27 comments
- 15,985 views
How to update the HMI 2.5 navigation maps using GM DPS
How to update the HMI 2.5 navigation maps using GM DPS

Troy · September 21, 20214 yr

Officially when you purchase the HMI navigation map update from GM, GM dispatches the map update on a USB stick drive, which is locked to the VIN number submitted when purchasing the map update. This added navigation map update security makes it impossible to use that navigation map update USB stick to update the HMI module in cars other than the one you purchased the map update for. In order to overcome the map update security issue and to be able to use the map update USB sticks on other cars
Troy

September 21, 20214 yr

Troy

August 15, 20241 yr
- 7 comments
- 8,762 views
How to correct checksum after editing GM's calibration files
How to correct checksum after editing GM's calibration files
Troy · August 1, 20214 yr

Update 2/October/2025 You no longer need to manually correct the checksum of the GM calibration files. You can automatically correct the checksum of modified GM calibration files online using this checksum tool, which was created by a CameraLoops member. The online checksum tool can be accessed from the website's top menu, under the "Tools & Games" button, or via the following web link. GM Online Checksum Calculator Massive thanks to ECU-Online.com In this tutorial, I will explain in ste
Troy

August 1, 20214 yr

Troy

October 15, 20241 yr
- 110 comments
- 23,910 views
How to trick GM's SPS into giving files when the module is already updated to the latest calibration version.
How to trick GM's SPS into giving files when the module is already updated to the latest calibration version.
Troy · July 28, 20214 yr

It's beneficial to read up on this other tutorial to familiarise yourself with GM's calibration files concept if you're new. I will demonstrate how to trick GM's online SPS into giving you the needed calibration files when the module is already updated to the latest calibration version, or has a different part number version for the car/VIN it was originally coded for. Before you approach this method, you need to already have a set of calibration files for the editing proc
Troy

July 28, 20214 yr

Cleberson Santos

April 19Apr 19
- 35 comments
- 21,629 views
Hacking the GM HMI 2.5 module.
Hacking the GM HMI 2.5 module.
Troy · June 27, 20215 yr

I'm on a quest to hack the GM HMI 2.5 module to learn more about its functionality. This article is a placeholder for future findings and experiments. GM HMI 2.5 EMMC Chip Pinouts for dumping the HMI 2.5 Emmc Micro Chip For dumping the contents of the HMI 2.5 module's EMMC chip, which stores the Sat-Nav maps, calibration files and other operating files. To be continued
Troy

June 27, 20215 yr

+crakavelli

February 22Feb 22
- 124 comments
- 24,183 views
Insignia 1.6 SIDI Turbo A16XHT, E39A ECU tuning files Stage-1 and Stage-2
Insignia 1.6 SIDI Turbo A16XHT, E39A ECU tuning files Stage-1 and Stage-2

Troy · June 24, 20215 yr

professional ECU tuning files for Insignia 1.6 SIDI Turbo ECM-Acdelco E39A, engine A16XHT Includes Stage-1, Stage-2 and original stock ECU dump file. The tuning can be done via OBD port using an open port 2 OBD interface and the now free ECUF Flasher (Alex Flasher) software. Using the Open Port 2 and the Alex Flasher software, the Acdelco ECU E39A took 1 hour 27 minutes to read/dump the ECU and 3 minutes to write the tuning to the ECU. Cheap Open Port 2 Clone that works. The now free ECUF Flashe
Troy

June 24, 20215 yr

Troy

December 23, 20214 yr
- 5 comments
- 5,227 views
GM Radio/SilverBox USA satellite and HMI 2.5 module VIN number Relearn, remove theft lock with GM DPS
GM Radio/SilverBox USA satellite and HMI 2.5 module VIN number Relearn, remove theft lock with GM DPS

Troy · June 22, 20215 yr

This file will activate the HMI 2.5 and Radio/SilverBox module to learn whatever VIN number that's stored in the BCM module. One file which will relearn the VIN Number for both the Radio/SilverBox and HMI module. Remove the Theft lock from both the Radio/SilverBox and HMI module. Great if you want to install a used HMI and Radio/SilverBox to your car. HMI and Radio/SilverBox file. FOR OPEL SilverBOX. Not for USA satellite radio module HMI and USA Satellite Radio file. FOR USA Satellite R
Troy

June 22, 20215 yr

+Last_Captain

April 24, 20251 yr
- 14 comments
- 9,959 views
How to update Insignia/Buick Regal 2014 IPC firmware to 2017 with GM DPS
How to update Insignia/Buick Regal 2014 IPC firmware to 2017 with GM DPS
Troy · June 13, 20215 yr

The firmware files.
Troy

June 13, 20215 yr

+karolputowski

March 12, 20251 yr
- 40 comments
- 9,795 views
How to create GM DPS archive file from SPS cache files for HMI module
How to create GM DPS archive file from SPS cache files for HMI module
Troy · June 5, 20215 yr

You can learn how to obtain calibration files from GM SPS service by enrolling in the course below, which is necessary for creating the DPS archive file. You can learn how to manually create the DPS archive file used to program a GM vehicle model by enrolling in the course below, which is necessary for creating the DPS archive file. You can learn how to manually create the DPS Type4 file used to program Setup And Configuration settings in a GM vehicle mode
Troy

June 5, 20215 yr

+chuckk

February 14, 20242 yr
- 81 comments
- 32,661 views
How to activate remote start and change VIN number in GM's instrument cluster BMC
How to activate remote start and change VIN number in GM's instrument cluster BMC
ªkravatnik · June 1, 20215 yr

In order to activate remote start on GM vehicles you need: 1. Find VIN car("new VIN"), which have remote start options (PRO code BTV). 2. Update firmware for BCM from SPS with "new VIN". 3. Change VIN in BCM from "new VIN" to your original VIN in order to odometer shows correct data. For this you need cheap CH341A EEPROM tool like this. USB BIOS EEPROM SPI FLASH Programmer CH341A 24 25 series The following video show you how to setup the chip reader and program
ªkravatnik

June 1, 20215 yr

+tobiasp

November 23, 20241 yr
- 73 comments
- 14,811 views
How to change EPROM PIN code and VIN number in GM's instrument cluster IPC
How to change EPROM PIN code and VIN number in GM's instrument cluster IPC
Troy · May 30, 20215 yr

PIN and VIN can also be changed in the IPC electronically using the GM DPS tool and my custom DPS PIN and VIN change files. See the service below. PIN and VIN change DPS files service. How to manually change the EPROM PIN code and VIN in an 8-inch Insignia instrument cluster. This tutorial shows how to change the VIN and security PIN stored in the IPC EPROM chip. Tools you will need: Soldering iron and solder. A hot air rework station or solder wick for removing the EPROM chip. A chip pro
Troy

May 30, 20215 yr

+marcel_hack_guy

March 4Mar 4
- 40 comments
- 17,016 views
How to change VIN number in GM instrument cluster, BCM and Brake using GM DPS
How to change VIN number in GM instrument cluster, BCM and Brake using GM DPS

Troy · May 15, 20215 yr

In this video, I demonstrate how to use the GM DPS tool and DPS archive files to change the instrument cluster's VIN. The exact process can be used for other modules using those modules' specific archive files. You can use this process to change the VIN number in a used instrument cluster so that the correct mileage from the BCM module is displayed on the instrument cluster. Feel free to ask any questions in the comments section for help. Files 3 Byte seed key from 2009 to 2017 Insignia cars
Troy

May 15, 20215 yr

Troy

July 7, 20242 yr
- 17 comments
- 17,877 views
HMI theft lock, How to remove GM HMI theft lock with GM DPS, Plus more.
HMI theft lock, How to remove GM HMI theft lock with GM DPS, Plus more.
Troy · May 13, 20215 yr

Welcome, one and all. Feel free to ask any questions in the comments section for help. Here, you will find information and files for upgrading your HMI v2 to the HMI v2.5 or replacing your HMI module with a used part. Upgrading from HMI v2.0 to HMI v2.5 will enable Apple CarPlay, Android Auto, better SAT-NAV maps, video playback, and faster touch reaction from your touch screen. Most of GM's electronic module car parts are security-locked to a specific car via the car's VIN number. To install us
Troy

May 13, 20215 yr

Troy

November 1, 20241 yr
- 80 comments
- 37,079 views
Thinkware U1000 dash cam and iVolt mini battery install and mod
Thinkware U1000 dash cam and iVolt mini battery install and mod

Troy · May 8, 20215 yr

This is not really a review as they're already tons of reviews all over the web about the Thinkware U1000 DashCam. In this article I display my mods for discreetly installing the U1000 in my car and modifying two Thinkware iVolt mini battery for longer parking mode recording without using the car's battery. It's a shame Thinkware didn't design the iVolt mini battery with a USB port and a port for extending the battery like some of the other brands. The U1000 live view feature via
Troy

May 8, 20215 yr

Troy

June 26, 20215 yr
- 2 comments
- 4,230 views
HyperJuice MBP 1.5-222, USB-C Magic Box V2 faulty not working fix
HyperJuice MBP 1.5-222, USB-C Magic Box V2 faulty not working fix

Troy · May 6, 20215 yr

The HyperJuice MBP 1.5-222 MacBook power bank battery is OK, though the USB-C Magic Box V2 is rubbish and a waste of money. It stopped working and was replaced under warranty twice in the same year. Whatever electronic parts are used or circuit design is not good. A simple fix is to use a 100W car cigarette port USB C charger to make an adaptor for my MacBook. The 100W car cigarette port USB C charger does get a bit warm when used. This is normal, as it does get warm when using it in the car on
Troy

May 6, 20215 yr

Troy

May 6, 20215 yr
- 0 comments
- 4,043 views
Tactrix Openport 2.0 genuine vs clone
Tactrix Openport 2.0 genuine vs clone

Troy · March 29, 20215 yr

The original is the one with the black OBD connector. Both seems to have the same electronic parts. Both works the same but I would trust the original more. Photos of the inside below.
Troy

March 29, 20215 yr

Troy

March 30, 20224 yr
- 3 comments
- 15,029 views
1419 cnc review and mods
1419 cnc review and mods

Troy · August 10, 20205 yr

Mini 1419 CNC Great lil machine Grbl circuit board Mods parts Limit switch install Bluetooth board added Plastic dish case With a stop and power switch All that is left is to upgrade the spindle. Spindle upgrade.
Troy

August 10, 20205 yr

Troy

August 10, 20205 yr
- 0 comments
- 6,731 views
Plants 2020
Plants 2020

Troy · July 19, 20206 yr

Some garden plants 2020
Troy

July 19, 20206 yr

Troy

July 19, 20206 yr
- 0 comments
- 5,145 views
The two best perfume on planet earth.
The two best perfume on planet earth.

Troy · March 24, 20206 yr

From ancient times, perfume has played a significant part in our lives and well-being. We use perfumes for various traditions and occasions. It has been said, "A satisfying scent can move many mountains." Throughout my life, I've had a yearning to collect great fragrances, which I use in various forms to enhance my character and benefit my mental well-being. Yep, great-smelling fragrance is vital for our mental and emotional well-being. The three main characteristics I look for in a fragrance ar
Troy

March 24, 20206 yr

Troy

March 24, 20206 yr
- 0 comments
- 4,235 views
Paul Smith London men's perfume relaunch.
Paul Smith London men's perfume relaunch.

Troy · March 16, 20206 yr

One of my favourite men's perfume is London by Paul Smith. Reasons being, it has a very pleasant ancient unique odour and it's very long lasting, for example, if I spray it on my skin the fragrance will last all day. If I spray it on my clothes, after two days I can still smell it. Many perfumes when first sprayed will give off a nice fragrance then after a few hours, that nice fragrance fades away and leaves a base note scent, which is different from that first scent. With Paul Smith London it
Troy

March 16, 20206 yr

Troy

March 16, 20206 yr
- 0 comments
- 5,546 views
Goal Zero Sherpa 100PD GOAL ZERO power bank, Tear down
Goal Zero Sherpa 100PD GOAL ZERO power bank, Tear down

Troy · December 27, 20196 yr

The Goal Zero Sherpa 100PD GOAL ZERO power bank has 8 18650 batteries Photos below
Troy

December 27, 20196 yr

Troy

July 3, 20233 yr
- 2 comments
- 8,344 views
Beats Studio 3 Vs Audeze LCDX headphones
Beats Studio 3 Vs Audeze LCDX headphones

Troy · December 27, 20196 yr

I got a beats Studio 3 for Christmas. I received a Dr Dre Beets Studio Three as one of my Christmas gifts this year. I had the first Beats studio, which got lost or stolen some time ago. I replaced that lost Beats Studio with an Audeze LCDX. The LCDX is an excellent headphone. It's the best-sounding headphones I have ever heard. The cons of the LCDX are that it's enormous and not wireless. After using the LCDX with my iPhone's modified mic headphone cable for over two years, I got fed up with th
Troy

December 27, 20196 yr

Troy

March 24, 20206 yr
- 1 comment
- 5,517 views
Lifepowr TP96 Car Charger damaged my MacBook Pro 16
Lifepowr TP96 Car Charger damaged my MacBook Pro 16

Troy · December 19, 20196 yr

I was in need of a car charger for my MacBook Pro 16 2019 model. I bought a Lifepowr TP96 Car Charger. After connecting my MacBook pro to this charger, it has damaged the charging hardware in my MacBook Pro, which I will need to take to apple to replace the MacBook logic board. The issues are: 1. When there is no charging cable connected to the MacBook USB-C port, the MacBook is displaying "Power source: Power Adaptor." 2. When I connect the USB-C charger to the MacBook, it takes 5 s
Troy

December 19, 20196 yr

Troy

December 19, 20196 yr
- 0 comments
- 4,824 views
The Lifepowr A3 MacBook pro power bank tear down
The Lifepowr A3 MacBook pro power bank tear down

Troy · December 19, 20196 yr

The Lifepowr A3 MacBook pro power bank specifications are listed as a 27000mah power bank with a USB-C output at 87watts. After receiving a Lifepowr A3 MacBook pro power bank, I opened it up to see what's inside. There are 8 Samsung INR18650-35E, 18650 batteries combined, which equals to 28000mah output. The INR18650-35E specs are Official specifications: Nominal capacity: 3500mAh Minimum capacity: 3350mAh Nominal voltage: 3,6V - 3,7V Chargi
Troy

December 19, 20196 yr

Troy

December 19, 20196 yr
- 0 comments
- 4,464 views
Upload Photos To Instagram FREE! From Your Mac Or Windows PC Using Web Browser
Upload Photos To Instagram FREE! From Your Mac Or Windows PC Using Web Browser

Troy · June 20, 20197 yr

Do you want to upload photos from your Mac or Windows PC for free with no hassle? The simplest method is to use the Vivaldi web browser. Download Vivaldi The super-customizable web browser Vivaldi offers the quickest and easiest way to upload photos to Instagram from your PC or Mac. It runs the mobile version of Instagram's website in a web panel. Download and install Vivaldi, then either run through the wizard to import bookmarks and set your preferences or click 'Skip all' to continue with
Troy

June 20, 20197 yr

Troy

June 20, 20197 yr
- 0 comments
- 4,475 views
Rode Video Mic Micro Bouncing Quick Fix "Mod"
Rode Video Mic Micro Bouncing Quick Fix "Mod"

Troy · June 14, 20197 yr

A quick fix deserves to a quick write up. As we all Know the Rode video mic micro is a great microphone, except for the flimsy mic mount. For a quick fix, all is needed are some rubber bands wrapped around the antivibration mount, which will cut down some of the bounciness. The fix 10 loom bands. loom bands are rubber bands kids use to make various arts and crafts. Check with your kids as they might have some. Wrap 5 bands around each side of the mount, job done. Check out my vid on the Tube f
Troy

June 14, 20197 yr

Troy

June 14, 20197 yr
- 0 comments
- 4,935 views
How To Hack Apple Mac EFI Bios Firmware Password On A MacBook Pro 2011
How To Hack Apple Mac EFI Bios Firmware Password On A MacBook Pro 2011

Troy · June 14, 20197 yr

If you're reading this, I'm guessing you yourself is on a mission to remove an unknown bias password from a Macbook pro. I'll start off with the tools you will need in order to spare you the read Tools needed. A sop 8 chip programmer with a sop 8 holder or pin connectors. ( I use the True Wellem USB chip programmer acquired some years ago back in my Xbox 360 hacking days). A hot air rework station, or a soldering iron with soldering wick and a razor blade.
Troy

June 14, 20197 yr

Troy

June 14, 20197 yr
- 0 comments
- 8,406 views
How To Replace Vauxhall Insignia Oil Pickup Gasket, Insignia Low Oil Pressure Warning Fix,
How To Replace Vauxhall Insignia Oil Pickup Gasket, Insignia Low Oil Pressure Warning Fix,

Troy · June 14, 20197 yr

How-to replace oil pump pickup gasket for Vauxhall Insignia, Opal Insignia . The method for replacing the gasket on a manual transmission and an automatic transmission is almost the same. All the automatic transmission insignia cars have a pre-cutout on the transmission box to remove the two Torx bolts without rotating the engine's flywheel. Insignia low oil pressure warning. Replacement oil pickup gasket Holes cut with a drill to gain access to two bolts. Some manual transmission insign
Troy

June 14, 20197 yr

Troy

February 18, 20215 yr
- 2 comments
- 20,082 views
IPHONE ANAMORPHIC SETUP, MOONDOG LABS, HELIUM IPHONE CASE AND RODE VIDEO MIC MICRO
IPHONE ANAMORPHIC SETUP, MOONDOG LABS, HELIUM IPHONE CASE AND RODE VIDEO MIC MICRO

Troy · June 14, 20197 yr

Yep’ I’m still riding the Anamorphic wave. I got me a Helium iPhone case and a Rode video mic micro to top it off. The Helium case is top-notch, its made from full alloy metal. As I said before “I likes meee metals”. The Helium case has a 37mm threaded lens attachment incorporated in the phone case, which gives a direct fit for the Moondog labs Anamorphic lens adapter. The case has mounting points all around, which is great for mounting various accessories. Example, a mic, lights, a handle, a se
Troy

June 14, 20197 yr

Troy

June 14, 20197 yr
- 0 comments
- 4,745 views
Propagating Plants
Propagating Plants

Troy · June 14, 20197 yr

There are many reasons to propagate plants, such as taking plant cuttings. Some of the reasons are. Cost: It is cheaper to propagate a few plants from what you already have than to purchase new ones. Plant life expectancy: Many perennial plants live for a few years and then die. Taking cuttings from those plants extends the species living in your garden. Multiplying the breed: If you have only one type of a specific plant in your garden, you can take cuttings from the mother plant and multiply
Troy

June 14, 20197 yr

Troy

June 14, 20197 yr
- 0 comments
- 5,107 views
Creating a Brass hinges for a Constantine lighter Movie size
Creating a Brass hinges for a Constantine lighter Movie size

Troy · May 12, 20197 yr

The first hinges on my lighter broke, it was thin and not strong enough. This time around I thought I'll create a much thicker hinge from a bit of bass bar. The best way to create the hinges would be to use a CNC milling machine, which would need to be programmed and tested. I chose to create the hinge from the eye with a Dremel tool. Plus, it's great fun creating things with the eye without using a machine. I started off by tapping bigger threads for bigger screws. The brass bar I used
Troy

May 12, 20197 yr

Troy

July 7, 20197 yr
- 1 comment
- 6,437 views
Macro photography in the garden with Olympus 60mm f2.8 Macro lens, GH5
Macro photography in the garden with Olympus 60mm f2.8 Macro lens, GH5

Troy · May 10, 20197 yr

The warm London weather is late this year.Last year at this time it was nice and hot. Nonetheless A bit of macro in the garden, snapping up all the insects who're on a Friday's evening lounging is always a great treat. A photo of a Dragon fly relaxing on a bit of Ivy leaf. Before and after filter from Apple photo app.
Troy

May 10, 20197 yr

Troy

May 10, 20197 yr
- 0 comments
- 4,988 views
Why I will never buy Weber BBQ again
Why I will never buy Weber BBQ again

Troy · May 10, 20197 yr

I bought a Weber Performer in 2016 to upgrade to a much bigger BBQ with a more modern look. I was hoping to buy one that would last forever. I also purchased the Weber cover for the BBQ. After one year, the Timer stopped working, and the BBQ cover deteriorated. Due to my busy life, I never contacted Weber regarding the warranty. In 2019, the BBQ table broke. I thought that was enough. I searched to see if other folks had the same issues. Lo and behold, the Weber Performer plastic table was break
Troy

May 10, 20197 yr

Troy

May 10, 20197 yr
- 0 comments
- 5,142 views
Old Build Hexa-Copter (aka Drone) 2011
Old Build Hexa-Copter (aka Drone) 2011

Troy · March 2, 20197 yr

Sometime ago back in 2011 long before domestic drones were popular and couldn’t be bought ready-made off the shelves, I created this hexacopter. It was based on electronic parts sourced from Germany. The copter frame I designed using AutoCAD, then fabricated it from carbon fiber material using my trusty little homemade CNC machine. I gave the copter the name “TROY” Troy the Trojan, as in the very unpredictable free-spirited one. This was probably my 10th build. I had gain
Troy

March 2, 20197 yr

Troy

March 2, 20197 yr
- 0 comments
- 3,627 views
Moondog Anamorphic Lens Adopter Unboxing "The Anamorphic Craze"
Moondog Anamorphic Lens Adopter Unboxing "The Anamorphic Craze"

Troy · March 2, 20197 yr

There’s an Anamorphic craze going on in the indie and hobbyist videography realm. What is Anamorphic? well’ Anamorphic is a method used by the movie-making industry, which was only available to them once upon a time in Hollywood due to the cost of the equipment. Little by little small companies are creating affordable Anamorphic lenses and lens adaptors for the growing indie and hobbyist videography market. Moondog and BeastGrip are two of them. They created Anamorphic lens adapters for mobile p
Troy

March 2, 20197 yr

Troy

May 18, 20224 yr
- 1 comment
- 4,761 views
How To Repair A Mackie Big Knob Power Supply
How To Repair A Mackie Big Knob Power Supply

Troy · March 1, 20197 yr

The Mackie Big Knob monitor control power supply repair. The symptoms before my Mackie Big Knob died were, humming sound in headphones, slight vibrating noise coming from the knob. A few days after it died, no lights, nothing, no life. This isn’t a full in-depth tutorial. It’s more like a Brain Sparker to spark the DIY element in yourself to let you know you can repair your Big Knob without the need to pay Mackie £300 to repair it for you. All you needed to repair the unit is, a multimeter, so
Troy

March 1, 20197 yr

Troy

March 1, 20197 yr
- 0 comments
- 10,450 views