I'd like to flash my car back to it's original ECU tomorrow before going to my dealer next week. But since I've had a "check engine" light and a brake failure(!!), I do not want to erase that information before the MINI technicians take a look at it!
Is it safe to flash the car back to it's original ECU ? Can I be certain I will not lose any information in the computer concerning the car's faults ? Will it reset the check engine ?