Stock GM HMI-2.5 EMMC chip DUMP Mega link

Its showing as corrupt for me as well

Hey @Troy, how was the image created beacuse it shows as not readable.

I´ve tried opening it with 7-zip, Windows Disk Management, Linux and on a Mac but everything throws an error that it is not readable or corrupted.

Any ideas or tips?

Kind regards✌

I have an full dump @Troy that work i have restored my HMI 2 Times. Maybe i can help?

Hi folks, I replaced EMMC and uploded dump from identical working unit. HMI 2.5 now starts and I can load callibration etc however it restarts every minute or two. What could be bad?

Did you Pulled communication enable to 12V?

Did you get an picture on screen?

Yes, it starts normally, and everything work as it should for couple of minutes then restarts

Maybe is the Version in the dump newer or older as the Version you replaced. On the Board is also an nor Flash and if the checksums missmatch the watchdog os triggered. Maybe try to update to the Android auto Version this sould Update the nor as well

The dump is from SW Version 23415882

@Troy maybe it is interessting to dump the AA Software also?

Unit part number 84331775. Emmc Dump is the same. I run software update 84131941 for IO5 and it says update invalid. Does any one can share the latest update? Or should I load emmc dump for earlier model?

The only way i know to correct the checksums is to get an root shell and try to let md5sum run over /dev/mtdX and write this manuel to the checksum files on emmc. Or i think there is a Script from GM witch calcs all checksums

if the hmi reboots, try other calibration files.

That worked for me. Thanks.

Looking for advice on how to correct checksum please. I got stuck with the IO6 unit. Dump from the identical model was uploaded when I replaced faulty emmc but now again the unit is acting up. It restarts every 2 minutes and changing calibration doesn’t help at all.