Hello Jaxov, I am using my old iPhone 3G for almost 2 years now, and I want to give it a “facelift”. Will be able to restore it to the latest version of iPhone firmware in order to add more features and appurtenance into the device? By the way, my iPhone 3G is jailbroken on iOS 4.2.1 and it is factory unlocked. Thanks in advance.
Asked by: Max from San Francisco, California
Step 1: Backup your data so that you can restore it to previous settings if anything goes wrong.
Step 2: Download WhiteD00r custom firmware for your iPhone 3G.
Step 3: Now launch iTunes and connect your iPhone 3G. Then select your device from the list of devices and click on RESTORE while holding ALT (Mac OS X) or SHIFT (Windows) at the same time. New file browsers will popup and then just simply select the downloaded WhiteD00r custom IPSW file and restore it.
Step 4: iTunes will install the custom IPSW file on your device; this could take at least 12 to 15 minutes.
That’s t! You can refer on this site if you encounter some errors during the entire process.