Finding Out via the Serial No. – Partially Accurate You can find out if your iPhone 3GS is old boot rom by the 4th and 5th numbers in the serial number being below 40. How you get the serial number is on the iPhone: Settings > General > About > Serial Number However the above …
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Re-flashing the 06.15.00 iPhone 3GS BaseBand
Only for 3GS users with 6.15.00 bb or those that want 6.15.00 and know about potential loss of GPS. Very Important that you have old boot rom – new boot rom may/will likely kill the GPS functionality on the iPhone. If you accidentally tried to upgrade your iphone 3GS to iOS5 through stock official IPSW …
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Recover and Restore iPhone 3GS with Error 1015 stuck in Recovery Mode in iTunes
If you accidentally try and upgrade your iPhone 3GS through iTunes after having previously jailbroke it, it will get stuck in recovery mode and fail to restore to the official Apple firmware bundles IPSW. You will get a whole bunch of iTunes errors like 1015. The iPhone needs to be restored with the custom IPSW …
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