is the ecu stock
No it has an generic sage 1 tune on it. I can read the ECU perfectly fine, i'll try to flash the file i have to the ECU in bootmode.
For some reason it says ECU reports that security access was rejected. Then a few lines down it says Requesting security access. Security access granted.
I dont really know anymore, ill just flash the ECU in bootmode and then try to flash it again without being in bootmode