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iOS4 update - now iPhone now reboots during phone call

After about 4 or 5 mins in a phone call my iPhone 3GS reboots itself for no apparent reason. this did not happen before I put the iOS4 update on it. Is the some way I can stop this happening, or revert back to the previous version?

iPhone 3GS, iOS 4

Posted on Jun 22, 2010 1:53 AM

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2,230 replies

Jun 22, 2010 9:57 AM in response to homer4x4

I upgraded my Belgian Mobistar iPhone 3GS 32 MB from 3.1.3 to iOS4.
Got the same annoying crash when I am calling.
As a business owner I am not happy with this neither are the clients and prospects.
Calling Apple got me nowhere as I need to talk with the phone provider...
Calling Mobistar (and getting a crash every time they put me on hold or transfer me gets me in a vicious loop as I need to explain everything over and over as you get a different person at every call)
If this is the great OS Jobs talked about in his Keynote address... The medication he took for his disease not only made him lose a lot of weight but has affected his mind also...
It would better be called iCrash 4
Let's hope this doesn't take till September as been posted on other forums !!!

Jun 22, 2010 12:13 PM in response to homer4x4

Just in hoping this thread gets noticed: I have the same problem of the iPhone rebooting during phone calls. It does only happen after some minutes, but it doesn't happen all the time - I was unable so far to discover a pattern.
This is on a 3GS 32Gb, not jail-broken, flawless upgrade process, no restoring of backups or clean install.
Hope this gets resolved soon because, well, it's a phone after all and if there's one thing you'd want ot rely on...

Jun 22, 2010 1:46 PM in response to homer4x4

Mine does the same - get about 9mins into a call and the phone reboots.

It's a standard unmodded 3GS 16Gb, flawless installation as a new phone. I have always put the new firmware as a factory install and added everything back on rather than restore from backup, never been an issue before.

I initially put iOS4 on as a new phone, and worked my way through re-syncing everything the hard way. Phone reboots during call.

I did a DFU restore as a new phone, no apps added (thought there may be an issue with one of them on a new OS), only contacts, calendars, podcasts and pics. Still crashes during a call.

Tried to downgrade to 3.1.3 - this errors during verification with Apples' servers - I think error was 3194, which I believe is signing issue.

I'm too late to get onto Applecare tonight, but I will in the morning. Has anyone contacted Applecare re: this issue?

Jun 23, 2010 1:35 AM in response to homer4x4

I contacted Applecare yesterday in my country (Belgium).
They sent me to Mobistar (who has the exclusive distribution contract for Belgium) and there I get the message that they don't make and distribute the software, Apple does... (iTunes is a Apple, Not Mobistar channel for distributing software so they say at Mobistar iPhone support)
Getting the money for the phone is one thing but giving the right service is another thing...
If Apple doesn't want anything to do with it and directs everyone to the phone's network provider (who are not able to program, debug and distribute the software) we are in for a long, cold and wet trip...

iOS4 update - now iPhone now reboots during phone call

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