coolestguyplanet.net | Neil Gee

Updated post for upgrade to iOS 5.0.1 Jailbreak/Activate/Unlock How to upgrade a previously jailbroken iPhone to iOS 5.0.1 and preserve the baseband. The process of getting this job done requires a number of steps (but are easily done), which are downloading the official iOS firmware from Apple, upgrading iTunes to the latest version, getting the latest [...]

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 rule is not 100% accurate – there is debate [...]

If your iPhone gets stuck in iTunes DFU mode  - possibly due to trying to upgrade a jailbroken iPhone to a regular  iTunes iOS upgrade (which you can’t do),  there are a couple of tools to get it out of recovery mode DFU. Get the latest Redsn0w   — Mac OSX redsn0w_mac_0.9.10b4  or  Windows redsn0w_win_0.9.10b4 Before you [...]

Apple have released the latest iPhone OS - iOS 5.0.1 to patch a security exploit and other features – if you have already jailbroken your iPhone do not upgrade to iOS 5.0.1 via iTunes. Jailbreak now possible on 5.0.1 If you want an untethered jailbreak in the future, you will need to wait until a redsn0w version [...]

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 will kill the GPS functionality. If you accidentally tried to upgrade your iphone 3GS to iOS5 through stock official IPSW through iTunes on an [...]

If you are getting the error message in iTunes on a restore or upgrade of an iOS device; “The iphone ipad could not be restored. This device isn’t eligible for the requested build.” or “The iPhone Software Update Server could not be contacted”. or “Error 3194″ “Error 1600″ It may be because the machine has previously [...]

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 [...]