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.:: iPhone 3GS "device isn't eligible" error while trying to Restore 3.1.2 ::.

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a .:: iPhone 3GS "device isn't eligible" error while trying to Restore 3.1.2 ::.

Post by preet123 on Sat 15 May 2010, 5:31 pm

As Usual Apple closes it's signature verification for iPhone 3GS for Restoring 3.1.2 because it will always close old firmware verification whenever new version will come.
So People having problem has only one method to use,that is Custom 3.1.3 (old bootrom only) but just for jailbreak if modem is already upgraded to 05.12.01 or Official 3.1.3 if they have Factory unlocked one.
If you try to use Custom firmware on new bootrom you will get error 16xx.

So any thread or Posts about this problem will be deleted without notification.

P.S.
Various methods to check Bootrom version of 3GS

1. Model Number of New Bootrom phones start with "MC"
2. Serial number is XXX4XXXXXXX or XXX0XXXXXXX
3. Handset should be in DFU mode
Device Manager on your Windows PC.
Look for 'Universal Serial Bus (USB) Controller', you will find 'Apple Mobile Device USB Driver' as a sub item there.
Right Click and choose 'Properties', navigate to 'Details' tab and select Device Instance Path from the dropdown list.
At the end of this information string you will find the bootrom version, i.e. (iBoot-359.3.2) or up who knows
if this Method not work for you Use Another Method.http://forum.gsmhosting.com/vbb/5078931-post35.html


Another Method to flash 3.1.2 on 3GS if Saurik server has SHSH of the phone
http://forum.gsmhosting.com/vbb/f456/real-solution-restore-3gs-old-boot-only-3-1-2-tested-work-10000-a-933910/
preet123
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