Corrupted EEPROM on EZS audi

[bauvaisis]

Hi guys, after trying to read out a pin code with FVDI , same problem as usual, car lost all power , no ignition anymore and no com with module 5 EZS. Tried pulling fuse, reboot with battery off but nothing. I removed the module from the car , read the MCU flash + eeprom with XPROG . Flash seems to be OK, but eeprom seems to be corrupted !? Even the VIN isn't complete when opening the dump as if some bytes have changed ? I've seen a topic on this forum where in the eeprom bytes have been swapped around ... It isn't really my case but something happened ...

Car VIN : WAU ZZZ 4F97N001643

Any pros about this topic that could give me a hand on this ?

I've posted my flash + eeprom read out with XPROG.

have a nice day !

[jaromib]

Hi !
Try other older flash under sw130. I think your is above sw180
Regards

[bauvaisis]

my flash is SW 2.10 ! you think this can change something ?? when i post eeprom dump on tag key tool with FVDI, it isn't recognized ...

[jaromib]

I was same problem, after change flash car started again.

[jaromib]

I was same problem, after change flash car started again.

https://www.digital-kaos.co.uk/forums/showthread.php/582880-Q7-2015-Kessy-Dead-after-read-pin?p=3305850#post3305850

[bauvaisis]

thanks for your answer ! I have exactly same HW, SW and MCU mask as you ! do you still have the flash you used ??? thanks ;)

[bauvaisis]

i opened your eep with TAG tool , and i can read 3 keys programmed , but my EEP is corrupted! i will start by solving this first ;)

[bauvaisis]

or if anyone can calculate checksums on this kind of MCU internal EEPROM ? because i can do the rest manually : keys, pin, VIN etc ;) thanks

[qeso705]

There is no cks. Follow advices from jaromib.

[bauvaisis]

hi guys, just for an update, i managed to get the car working again thanks to Bobble's precious help :) eeprom and flash were corrupted. But now car is in component protection mode. Got to find a solution ! thanks :) I saw that ODIS online car do this, but it will be tricky to find someone with access .

[p1et]

Never touch Audi A6 C6 / Q7 with FVDI