Quote:
To my surprise it has read a full 512kb file without opening the ecu.
Thats not truth! Its only partial read with fullfill rest with FFs.
Open in hex editor and you will see.
There are other tools that really can read full FLASH without opening ecu for bootpin or soldering job.
If you flash a really full flash read with kess ecu will be bricked. Maybe recovering with bootpin.