Problem updating iphone 3gs to 5 0
See the sidebar's guide to updating jailbroken devices for more detail: You have to restore and jailbreak again, so here's a series of steps for making this process as easy as possible.
(Keep in mind that you cannot update a jailbroken device via Settings, also called OTA or wireless updates.) Before restoring, always check first to make sure the new i OS version is jailbreakable on your device.2. You can write this down by hand, or use App Info to email yourself a list of your installed packages and sources so that you remember which ones to reinstall after restoring.
(Most of your jailbreak tweaks store settings in your i Tunes backup, so loading a backup also reduces the amount of time it'll take you to configure your tweaks after reinstalling them.) But once in a while people end up with problems caused by bad settings from the old backup; if you use the backup option and end up with problems, you can always restore again and choose "set up as new" and then sync over your media and apps.
(If the "restore from backup" option isn't available and you use Gevey SIM, see this thread for suggestions.)5.
BOOT TETHEREDOnce you have jailbroken you will need to rerun redsn0w to boot tethered only if you have a new bootrom i Phone 3GS.
Step One From the main Red Sn0w menu click the Extras button.
A tethered jailbreak means you will need to connect your device to the computer each time you reboot.
Step One Create a folder on your desktop called Pwnage Download the latest version of Red Sn0w from here and place it in the Pwnage folder.
Most of the time, loading your backup will work just fine and is convenient.Restore with i Tunes, which will update your device to the latest version of i OS available (or if you're interested in restoring to a version of i OS that isn't the latest version available, follow this guide to using SHSH blobs to upgrade and then skip to Step 4).If you're just doing a normal update to the latest i OS version with i Tunes, you should click "Restore" instead of "Update", for best disk space results.Step Eight Red Sn0w will now prepare the jailbreak data.Step Nine Select Cydia from the list of options and click Next.