meysen
  •  meysen
  • 52% (Neutral)
  • Newbie Topic Starter
2021-01-05T17:33:02Z
HI
lastweek i write above ecu with other flash dump(same model) and all was ok -engine worked no problem.
but today i could not read or write it and fail unlock ecu.
so try many time but same error.
i think it changed the pass and in this case what i do?
thanks.
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Autohex_II_BMW
2021-01-06T06:03:22Z
Originally Posted by: meysen 

HI
lastweek i write above ecu with other flash dump(same model) and all was ok -engine worked no problem.
but today i could not read or write it and fail unlock ecu.
so try many time but same error.
i think it changed the pass and in this case what i do?
thanks.



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meysen
  •  meysen
  • 52% (Neutral)
  • Newbie Topic Starter
2021-01-24T17:22:16Z
HI
I tested several times.
I found the problem that when the flash file changes, it can no longer read the original password and unlocks it, while some devices prevent the original password from being changed, and you can program the ECU many times.
Autohex_II_BMW
2021-01-25T05:54:57Z
hi,
this ecu password look like is in otp portion so even if you write another file or dump password wont change as like siemens and continental ecu, it must communicate. if you have original backup of ecu please restore that back to ecu in boot mode and check if ecu back to normal.
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