Restore iphone 3gs without updating
Then, go to Settings Erase All Contents and Settings. When a windows saying "An update to the carrier settings on your i Phone is available. If you are asked to upgrade to newer version of i OS, click "Cancel".
This will erase all data on your device and restore it to factory settings. Plug i Phone back to computer Once the reset process is complete, the i Phone screen will display the factory default image and show the "Slide to set up" message. Note: A jailbroken device may go into a bootloop if the users enable "Erase All Content and Settings" under "Settings" "Reset".
Extract the Red Sn0w zip file to the Pwnage folder. Step Five Click the Restore button from the Even More menu. Choose the firmware you would like to update to from the dialog box that appears and click the Open button.
Step Eleven Your device will be detected once in DFU mode and exploited with Limera1n. Step Twelve Redsn0w will now restore the device to the new firmware.
Step Thirteen Red Sn0w will tell you when the restore has been completed successfully.
These are instructions on how to upgrade your i Phone 4 or i Phone 3GS firmware without updating the baseband.
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.