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I am trying to understand how to disassemble or at least get a readable copy of the update-binary file located in /META-INF/com/google/android/. It is a modified version for a smartwatch, which contains the key used by the manufacturer to temporarily unlock the bootloader and let the system update properly. I searched on the net but I did not find anything related to this. Have you got any idea of how could I extract that key form the binary file? The architecture is MIPS.

Thank you in advance!!

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    what is the name of the file? Does it have any discernible structure? does the dex code reference it in any way?
    – Igor Skochinsky ♦
    Jul 13, 2017 at 12:29

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I think it's a MIPS ELF binary. Maybe you can use IDA Pro (Win/Linux) or Hopper (Mac/Linux) or JEB (Win/Mac/Linux) to poke around. If you have a clue about the length or parts of the key, then you could try to search for relevant strings.

I've never tried it myself (MIPS), but maybe the approach helps you. ;)
Cheers!

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