How is the firmware encrypted?

Posted: 09-06-2003, 05:05 PM
I downloaded the firmware for my cellphone frome somewhere.
I have successfully decompressed the archive (as it was
compressed with a popular file compressor) and got the
ready to use flash file.
However when I tried to look into it (I just wanted to
do a reverse engineering of that) I found a complete
rubbish. It seems to me that flash files are encrypted
or scrambled. How can I get the phone's CPU machine code
out of the flash file?

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Responses to "How is the firmware encrypted?"

Andy Foster
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Re: How is the firmware encrypted?
Posted: 09-07-2003, 03:53 AM
An Metet <anmetet@liberty.gmsociety.org> wrote in message news:<8a023b8b598b76651408998916d5b49a@aonymous.po ster>...
> I downloaded the firmware for my cellphone frome somewhere.
> I have successfully decompressed the archive (as it was
> compressed with a popular file compressor) and got the
> ready to use flash file.
> However when I tried to look into it (I just wanted to
> do a reverse engineering of that) I found a complete
> rubbish. It seems to me that flash files are encrypted
> or scrambled. How can I get the phone's CPU machine code
> out of the flash file?


What software are you using to disassemble the code ? I assume you're
not trying to read pure machine code....
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