mms flex issue edc17c64
 

hi,

I have a strange issue with mms flex & edc17c64

whatever i do, i ve an error writing & verifing (corrupt writing) @ the 25th sector of internal flash. (128kb)

this issue happended after an frf update + obd reading using flex + unlocking proccess while tring to write using flex obd.

tried boot, bench & obd, no way !!!!!!!!!!!!!!

suspecting an FPGA soldering issue (the ecu seems very hot)

any suggestions ???

hi,
the car came running & working condition.
what I did :
- bench backup of the tcu & ecu
- updated ecu (frf) using odis e (ver 4943 to 8127) official frf database, checked, the car was running fine with dtc related to dpf & egr.
- pluged flex (obd), connect ok VR read. everything was fine as usual
- edited the vr (dpf & egr off), back to car write map
- the writing proccess started as usual but at 98% error (unlocking step)
- car wont start
- removed the ecu (btw the ecu seemed very hot) tried to write back the backup bench mode, result repeating 10 times the verification of the writing @25th sector. error
- tried boot protocol, same result stucks @ 25th

that's all