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| MMC Unlock codes http://forum.hddguru.com/viewtopic.php?f=10&t=13492 |
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| Author: | ajc [ September 28th, 2009, 14:29 ] |
| Post subject: | MMC Unlock codes |
Hi guys, I have a lot of experience with forensic analysis but not much "under the hood data" recovery stuff unless you can count dd_rescue. In my day job I see a lot of locked MMC cards from mobile handsets which are as a result impossible to image, I was wondering ..... Is it possible to unlock an MMC card that has been locked by a mobile phone handset (i.e Nokia) under the following conditions: - without the password - without losing the data - possibly without the handset I've read about MMC commands but as far as I could tell the only way to unlock the card without the password would result in complete data loss. I'm sure one of you chaps knows the answer. Cheers Andrew |
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| Author: | dick [ September 29th, 2009, 3:31 ] |
| Post subject: | Re: MMC Unlock codes |
Reading the following thread will probably explain the state of play.......though I am not sure what you would find when you open the package to desolder the chip. mmc-password-unlock-t7301.html Doomer wrote: They use standard MMC-command to unlock cards with the whole data erasing like Security Erase on HDD
If you need data - unsolder chip, read it on programmator and decode translator schema to get correct data or unsolder, find the password and reset it then solder it back |
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| Author: | BlackST [ September 29th, 2009, 13:19 ] |
| Post subject: | Re: MMC Unlock codes |
It is possible. |
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| Author: | ajc [ September 29th, 2009, 13:31 ] |
| Post subject: | Re: MMC Unlock codes |
Thanks for the replies, Sounds like as I suspected the only option would be to de-solder these cards. If I were to start experiment with de-soldering and reading the chips what gear would you guys recommend ? I've seen some of the salvation data flash gear is it obscenely expensive ? Thanks for your help so far. |
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| Author: | BlackST [ September 29th, 2009, 15:07 ] |
| Post subject: | Re: MMC Unlock codes |
Notice that : 1) not all MMC card can be opened physically (many are molded and/or use CSP) 2) assuming that the card can be opened, not all the chips/chipsets are supported by programmers 3) commercial tools for flash diagnostic / data access are NOT guaranteed to give you access to data, you still have to know some parameters or find by trial and error AND they cost a lot... 4) ... and many systems now do hard encrypt data before writing and decode it on the fly. |
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