i have a 29f800 apr flashed ecu that i cannot get to erase and/or reflash. i have tried flashing using bootpin and i also desoldered flash and used my external programmer.

reading using bootpin dumps correct file. flashing using bootpin/bench harness results in the software reporting flashing 100% but the data on the ecu being unchanged. at least most of it anyways. the stuff im trying to edit anyways remains unchanged.

desoldering and reading in external programmer results in dumping almost all garbage data. trying to program flash says chip must be erased first. erase chip, software reports erase ok. but flashing chip hangs at 50%. i think ok then, erase, resolder to ecu, flash using bootpin.

so i resolder to ecu, flash using bootpin, and still data on flash remains unchanged.

im thinking i need to solder a blank flash and flash that way, lol.

does this make sense to anyone? anyone seen anything like that?

apr changes the maps but the program also, so they can do that thing with the cruise control stalk. It seems to be a trick so you can't change program.

well, all I can think now is that there is a duplicate of readiness table somewhere in dump and ecu restores back to stock when reboots

have you looked for table byte complement, 2' complement, shift, reverse order... and combinations? I do not think they use a complex encryption. if you send me the file I will try to help.