Resetting iPhone via menu
Go to setting > General > Reset and select » Erase all content and settings »
One of the most important thing is that you have to understand that before you give your handset to repair shop or buy new handset,First charge your battery over 60%,backup your important data like photos,message,notes and in most cases take out Sim card.After data reset not possible to recover your data,so online backup is recommended.For all of your data should be done on a external device,hard drive,Pen drive,Sd card, any storage device or icloud backup.Let discuss briefly.
Latest ios version.
One latest ios version you have to enter icloud id and password after resetting.Without icloud id and password you are not able to activate you idevice.Such cases happen only if you have activate find on my iphone option on.
Go to setting > Icloud > Find my iPhone > « On ».
If your iPhone have hang or stuck on anywhere so you are unable to operate device in proper manner.
One important thing on iphone4 you have to understand before reset.If your iphone4 have wifi issue it may stuck on activating after restore.You have to repair wifi module for activating iphone4.iTunes also cannot activating your iphone4 via apple server.The errors is (0xE8000004)
and other model of idevice have no problem after reset in our experience.
Follow that procedure.
- Press and hold the Home button (big circle below the screen) and the sleep/wake button (on top of the iPhone) simultaneously.
- Continue holding both buttons until the iPhone shuts off and begins to restart.This will take anywhere from 15-60 seconds.
- You may let go when you see the apple logo.You have now completed the reset successfully.
- Now wait for load from apple logo to the main screen.