My iphone 5 has a problem with signal

My iphone 5 has a problem with signal, it always search for network. I had removed and plug sim card again but it doesn't work. Then I restore the iphone, and an exception was throw "... An unknown error has occured (3)."

unknow error 3 means the computer has lost communication with the device during the restore. It can be anything from bad cable, USB port, phone hardware etc.
Since your phone had a signal issue before, it would be your baseband chip faulty and when the restore tries to connect with the baseband chip to check (it does this when you restore) it waits till the chip responds then times out when it doesnt get any response. The restore will try this several times then eventually restart the phone to get out of the loop. As the phone gets restarted (or shutting off) itunes think the phone turned off and throws error 3.
Go to apple if it's under warranty. If not try to find where they do chip replacement as this is not something that you can do yourself.

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rdallas001 wrote:
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ronald1094

Try #5.
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~~~~~~~~~~~~~~~~~~~~~~~~~
iOS 6 Wifi Problems/Fixes
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http://www.theipadfan.com/workaround-ipad-wifi-issues/
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http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
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http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
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http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
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http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
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http://www.youtube.com/watch?v=XsWS4ha-dn0
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http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
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~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

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Natan turbo hadar,
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My iphone 5 has a problem with signal

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