A-40 os 25941751 [Archive]

LMMPerrona

January 18th, 2016, 05:29 PM

Does anyone out there have OS 25941751? Or maybe a full flash of the 25836826 so i can change the OS. Thank you

GMC-2002-Dmax

January 19th, 2016, 01:01 AM

You will need to seek a dealer and they will need to FULL FLASH/Reprogram the TCM with TIS, only a Cal Flash is available on the A40.

LMMPerrona

January 19th, 2016, 01:26 AM

OK thanks. I was thinking we still had the option to change the folder in v7.5 to make it full read/flash. Ross had posted a while back.

Anyone with just the Cal? I want to see if that will work for me.

killerbee

January 24th, 2016, 03:20 AM

OK thanks. I was thinking we still had the option to change the folder in v7.5 to make it full read/flash. Ross had posted a while back.

Anyone with just the Cal? I want to see if that will work for me.

I got your PM. It was posted, but I could never get full read to work. I imagine that others duplicated my result.

LMMPerrona

February 12th, 2016, 07:05 AM

thanks for the help guys.
I tried it with techII and no luck. my neighbor has an a40 tcm so i asked if i can read it. I did a full read for like an hour. after the read it said invalid checksum. I ignored it and full flashed mine. it all worked... TCM is back running. Thanks to EFILive, Keep up the good work.