Updating jailbroken iphone 3g
Avoid upgrading or restoring if you want a jailbroken device.
If you want to wipe all data on your device without upgrading the i OS, consider trying Cydia Impactor.
Tai G provides an i OS 8.4 and 8.3 untethered jailbreak.
Check @Pangu Team, @taig_jailbreak, @saurik, and /r/jailbreak for news and updates. If you are telling on an unlock you will have to use snowbreeze to create a custom IPSW to restore to.
Perhaps you have to take your i Phone back to an Apple Store because of a hardware related issue and you are jailbroken?
Well I will tell you how to restore you i Phone back to it's factory settings in a few simple steps.
*If you are jailbroken, it is my personal opinion . Select the Restore option when i Tunes prompts you.If you want to be ultra-safe, restore using the new version (which will wipe out everything on the device). Maybe you jailbroke it and things did not go as well as you planned?To jailbreak your i Phone 3G 4.0.2, you will have to use Red Sn0w 0.9.5b5-5.Step 1: Make sure you have the latest version of i Tunes installed (i Tunes 9.2).