how to unlock mpc5674af if missed password?
can write on it without unlock it?
there's no other way to recover. If you don't have implemented something like backdoor access (for example: software which is already programmed in flash reprograms the shadow flash when receiving specific message via CAN...) then you have to replace the chip.
am beginner in programing so make search about this chip and found many programer for automotive it can make unlocking for this chip if used in ecu like gpce for fca cars
they make unlock for it and do R\W for flash file
how can they do thats
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