Hackers Dot NL

Two steps forward

by Alex on 14:44, under Nieuws, Security, iPhone

 

Disclaimer!!  This is a purely technical post with no pragmatic use!  There is no 3G unlock in this post.  There is no iPod Touch 2G jailbreak in this post.  It’s just a random technical post related to the 3G unlock.

We’ve been exploring different ideas with the 3G unlock, but this past weekend one of us hit a big snag. For whatever reason, all of our poking and prodding of the 3G baseband caused it to finally have a breakdown.   After one specific exploit run, all of a sudden our baseband stopped responding to the OS.   Even after multiple restore attempts, we were plagued with errors like this:

Somehow our software hacking had caused the baseband chip’s SPI bus to stop responding (so it looked like a hardware problem).   Even though BBUpdaterExtreme reported the correct baseband version, it failed basic tests like memtest:

If you’re familiar with the baseband revision history for the 3G iPhone, you may have noticed that the above captures were done at the original 01.45 baseband.  As dire (and hardware-related) as these messages sounded, though, there was a simple solution.  We just updated to 01.46 and then downgraded again (because we can run unsigned code on the baseband CPU) to 01.45.

 

Lees meer op de iphone dev team blog website.

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14 comments for this entry:
  1. michael
    michael

    Hi

    Thanks for the great info, keep up the good work.

    Michael

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  3. taqeel01
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    Excellent work!
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  4. Alex
    Alex

    taqeel01: what kind off assistant do you need?
    email me your questions or explaining

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  5. aries
    aries

    Anyone can help me?after I upgrade my iPhone there was a problem after I unlock my iphone3g the carrier was loss no services I cannot use it for call or sending SMS. What will I do, pls help me……tnx djkacks@yahoo.com

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  7. Decarius
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    My 3G won’t unlock after numerous attempts I have restored several times and jailbroken it several times please help decariusevans@hotmail.com

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