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Discuss iPhone SIM-locked again after software restore! at the iPhone "2G" (Rev. 1) - Hackint0sh.org; Despite everything i was thinking - and writing in this forum - the unthinkable happened ...
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    Default iPhone SIM-locked again after software restore!

    Despite everything i was thinking - and writing in this forum - the unthinkable happened today: When i tried to upgrade my unlocked iPhone from 1.0.0 to 1.0.2, something went wrong. After starting the upgrade, iTunes showed an error message claiming that the upgrade failed with error -1. iTunes left me the only choice to restore the phone, what i did. After the restore, the phone was SIM-locked again. I'm not sure what was causing the re-locking of the phone - but if you want to upgrade your phone to a new software version - BE EXTREMELY CAREFUL!

    cu/

    Sergeij



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    Quote Originally Posted by Sergeij2000 View Post
    Despite everything i was thinking - and writing in this forum - the unthinkable happened today: When i tried to upgrade my unlocked iPhone from 1.0.0 to 1.0.2, something went wrong. After starting the upgrade, iTunes showed an error message claiming that the upgrade failed with error -1. iTunes left me the only choice to restore the phone, what i did. After the restore, the phone was SIM-locked again. I'm not sure what was causing the re-locking of the phone - but if you want to upgrade your phone to a new software version - BE EXTREMELY CAREFUL!

    cu/

    Sergeij

    Hi Sergei,

    From version 1.0.0 to 1.0.1 there was an update on the Baseband firmware.

    So iTunes automatically rewrites the BB. I think that was your problem.

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    Quote Originally Posted by brasuco View Post
    Hi Sergei,

    From version 1.0.0 to 1.0.1 there was an update on the Baseband firmware.

    So iTunes automatically rewrites the BB. I think that was your problem.
    I know. But as far as i know a phone unlocked with iPhone-software 1.0 (bb-fw 03.12.06_G) should be upgradable to software 1.0.2 (bb-fw 03.14.08_G). At least there are a couple of people in this forum claiming that they were able to successfully upgrade the phone and keep it unlocked.

    cu/

    Sergeij

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    Im pretty sure they were only saying that for upgrading from .01 to .02, not from .00 to .02.

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    Yeah, what brasuco and SebSter85 said. 1.0->1.01 had a baseband change in the patch. 1.01->1.02 had no updated baseband in the patch.


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    Just out of curiosity, which method of unlocking did you do?

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    Quote Originally Posted by craig View Post
    Just out of curiosity, which method of unlocking did you do?
    I was using Geohot's unlocking method. As far as i understood is the unlocking done with the official unlock AT-command - the patch bypasses the validation of the unlock code. My understanding is that once the locks are removed, they remain removed during an *update*. A restore resets the phone to the factory defaults, before the software is re-installed. This seems to turn the locks on again. May be i'm wrong. But nevertheless, i probably have to open the phone a second time (sigh). But this time i will try the needles - as the soldering was a real pain in the ass

    cu/

    Sergeij

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    ..i did the same last night, from 1.01 to 1.02, had to jailbreak, ssh, winscp and repeat the whole steps again, worth it though, i'm using supersim, before the update, i get ocassional no service warning but after the upgrade, looks pretty much stable for me...who knows..

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    DITTO! This just happened to me too

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    @Sergeij2000: the lock will remain through an "update" as long as the patch doesn't update the baseband code, since that is where you applied your unlock hack. So, for example, if Apple releases 1.0.3, and that contains updated baseband code, you'll probably get locked again (assuming you apply the patch).


 

 
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