How to fix Error 35 on iPhone after iOS 12 update?

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Level 1

18 points

How to fix Error 35 on iPhone after iOS 12 update?

I have an iPhone 7. Everything was working perfectly alright until last week when I updated the iOS to 12. The phone started freezing on me intermittently. Couple of days ago when I woke up, my phone was turned off (although I charged it to 100% the night before and battery is new). Tried multiple attempts to start but would not work. Tried charging again but would not work. Tried apple support and followed the directions to use iTunes for "system recovery" but it showed "Unknown error (35)". During recovery, the phone shows an apple icon on the screen as long as its connected do the iTunes but it gets stuck there and this above error shows on the iTunes on my MacBook. Attempted with windows and apple tech as well but no luck. I am pretty sure that it was the update which crashed the phone.

Any suggestions? Apple store didn't really have any solution for me..

Thanks

iPhone 7, iOS 12

Posted on Oct 6, 2018 5:18 PM

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Answer 1

Top-ranking reply

sberman

Level 10

268,083 points

Oct 7, 2018 8:16 PM in response to pritesh45

pritesh45 wrote:

(although I charged it to 100% the night before and battery is new).

Battery is new ... Did you get this battery at an Apple Store or Authorized Apple Service Center?

Yes. They should be able to assist with this issue.
No. You had an unauthorized service performed on your iPhone, which is likely the cause of the issue(s).

Related to Error 35, which you mention in the post's header but not the body:

Get help with iOS update and restore errors - Apple Support

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Answer 2

aackward

Level 1

9 points

Oct 16, 2018 11:13 PM in response to pritesh45

This exact thing is happening to me after the recent update. My phone will show the logo and then go blank. I’ve tried updating and restoring on iTunes and it says unknown error 35. Did you have any luck with your phone?

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Answer 3

pritesh45 Author

Level 1

18 points

Oct 17, 2018 1:34 PM in response to aackward

I called the Apple support and went to the Apple store nearby but they both said that it was my phone that has the problem and not the software.. they asked me to buy a new phone since mine was out of warranty. I couldn't believe that when it was working fine the night before, how did the hardware go bad automatically.. So called the Apple support again and they arranged for my phone to be looked at again or replaced.. they eventually replaced it..

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