Here comes a similar problem:
Im reading in Jtag Mode Isuzu Dmax Transtron ECU with foxflash, I can connect to ecu with jtag connection and it’s reading, but at the end I get this error and file is not ok, it’s empty.
Error “File not recognized, send file to technical support Checksum will not be calculated”!!!
What’s the Problem?
Solution:
The file on ecu is not recognized by foxflash tool, so it cannot perform the necessary checksum calculations, it is warning not error. This could be due to reading error, jtag do not need such high voltage, try 12.5v.