Apple iphone4/4s upgrade iOS7 after SMS, music, mail no sound

Source: Internet
Author: User

Problem sharing

IPHONE4S upgrade ios7.0.2 After SMS, music, Web page to watch video, mail no sound!

Solutions

First, try to go into DFU mode to update the firmware and try again. Unes upgrade a lot of directly with it updates are the problem.


Second, the DFU mode entry method: Turn your iphone off, while holding down the switch and home keys. When you see the white Apple logo, loosen the switch button and keep holding down the home button. When you open itunes and wait for it to prompt you for recovery mode, hold down the SHIFT key on your keyboard and click "Restore" to select the appropriate firmware to recover.

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