Handbuch iphone 4s restore
3 Steps to Permanently Restore iPhone 4/4s to Factory Settings. Step 1. Connect: connect your iPhone 4/4s to computer where iMyFone Umate Pro locates. Step 2. Erase: go to “Erase All Data” tab and hit “Erase” button. Step 3. Confirm: type “delete” into the box and hit “Erase Now” to start the process. Make sure that you have the latest version of iTunes on your Mac or PC. If you can't access a computer and your device still works, you can erase and restore your device without a computer. If you want to save the information on your iPhone, iPad, or iPod, make a backup. Go to Settings > [your name] > iCloud, tap Find My iPhone, then turn it off. Dec 26, · Now that the iPhone 4S is more than a year old, many users may want to change their battery if their charge cycles aren't what they used to be. A bad battery can also cause your iPhone 4S not to boot at all. So if your iPhone doesn't want to turn on at all, the battery is a good place to start. How to replace the battery in an iPhone 4SAuthor: Allyson Kazmucha.
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