Hi, I haven’t updated the firmware of this phone since I bought this couple of years ago. The handset is still on iOS 3.1.3. A friend, who is an iPhone 4 user, told me that I could update my iPhone to iOS 4.3.5. However, when I am connecting my iPhone to my computer, iTunes do nothing it just asked me if I want to sync my phone. Why I can’t restore my phone? Thanks.
Asked by: Carmella from Boise, Idaho
Also, if you were using a USB hub, disconnect your iPhone and connect it directly to your PC. You can also use a different connector if you were having issues when connecting your iPhone to your computer. If still no hope, I would recommend you to restore your iPhone using a different computer with latest version of iTunes installed.
On the other hand, if you’re planning to jailbreak your iPhone on iOS 4.3.5, then you can use Redsn0w 0.9.8b4 which is available for Mac OS X and Windows users. Hope this help.