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Mike, Mac Medic
Category: Mac
Satisfied Customers: 8204
Experience:  Over 20 years IT experience with Apple computers in publishing, marketing and design.
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My iphone 4 will not boot up

Customer Question

My iphone 4 will not boot up
Submitted: 4 years ago.
Category: Mac
Expert:  CompExpert replied 4 years ago.
try to restore your iphone with recovery mode.

1.Attach the phone to the pc
2.Turn the phone off
3.Press and hold power. Keep holding power. As soon as you see display on the screen of any sort press and hold home button.
4.Hold power and home together for *exactly* 10 seconds
5.Release power but keep holding home until the pc beeps as a USB device is recognized.
6.At no point will the display come on. Now your restore should work.

after that open itunes on your computer, if you did the above steps correct,
itunes will stated that your iphone is in recovery mode and asked if you want to restore. click yes to restore.

let me know if that workout for you. thanks
Customer: replied 4 years ago.

The iphone could not be restored an unknown error has occured


Expert:  CompExpert replied 4 years ago.
is that the error message " unknow error has occured"?