With QF03 you cannot use files (firmware and MCU) of QF01...as default the MCU file of your HU which version did it have (QF03xxxx) or QF01xxxx?I flashed the qf03 to qf01, by inputting code 774411 before flashing, and nothing happened, I cant see any difference.
it is possible to by-pass the checksum before flash (uncheck option) but you must still use files for QF03 in your case.
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