Shadow Password E84, E98, E39, E39A

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antus
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Re: Shadow Password E98, E39, E39A

Post by antus »

What is the shadow password used for? It sounds like a bootloader recovery unlock so that if the PCM is bricked then it is still locked but recovery can be unlocked with the shadow password. Is this correct?
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
kostia111
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Re: Shadow Password E98, E39, E39A

Post by kostia111 »

this is the password to enter recovery mode
each instance of the block has its own password
I can recover this password from the label
https://www.youtube.com/watch?v=w_pUh09WVD0

if the block died during programming and does not respond to commands
or if, for example, the tuner protected the block from reading
knowing the password you will be able to read and write the correct firmware
etc
3staar
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Re: Shadow Password E98, E39, E39A

Post by 3staar »

We have come across a few instances of needing the password, usually quicker to program a donor ecu to car. Would love to revive the few dead ecus we have.
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Re: Shadow Password E98, E39, E39A

Post by 3staar »

A big thank you to kostia111, he provided the correct password for us to recover our bricked ECU saving buying and programming another. FYI there is no other way of calculating the password other than from the label itself. EEPROM/Flash etc are all useless.
kostia111
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Re: Shadow Password E98, E39, E39A

Post by kostia111 »

I don't know how to edit the topic title
and the first message.
It is now also possible to calculate the password using the label for E84 modules.
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antus
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Re: Shadow Password E84, E98, E39, E39A

Post by antus »

You edit the first post of the thread, and change the title there. I've done it for you.
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
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