Foxflash Audi EDC16U31 Bench Write Error Solution

 Problem:

Foxflash programmer reads Audi Bosch EDC16U31 ECU ok, but failed to write this ECU on bench. Any solution?

Solution:

First voltage is too low, try to write with voltage over 13.5V.

Second, it can be up to checksum. Make cheksum on winols, not with foxflash.

Don’t do checksum automatically when writing back original.

If fail to write back original file, open and use bdm or try to flash original. You can easily recover it in boot with k-tag/kess3 as well.

KESS2 or mpps is better on this old ECU.