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Ashik, Mac Technician
Category: Mac
Satisfied Customers: 9779
Experience:  Bachelor of Computer Application (BCA), 9+ Years of Experience in troubleshooting Macs, iPhone, iPad, iPod etc
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My iphone 3gs will not boot. Sleep and round button hr eld

Customer Question

My iphone 3gs will not boot. Sleep and round button hr\eld for 10 seconds diud not fix.Apple logo appears abn\nd goes away
Submitted: 5 years ago.
Category: Mac
Expert:  Ashik replied 5 years ago.
Hi My name is Ashik. I hope i can help you.

Sounds like the iPhone's firmware is corrupted. We can try to restore your iPhone by putting it to DFU (Device Firmware Update) mode;

  • iPhone's screen remains black
  • Now restore it from iTunes application.

Refer the video in here :

Let me know if that didn't worked.....

Best Regards,