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3GS Crackling Hiss Crash


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Sep 11, 2011
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For the last 2 weeks I have been having big issues with my iPhone 3GS running OS 4.3.5.

If I play music through the external speaker, I either hear nothing, or I hear a loud hiss, crackling, and then the phone crashes and reboots.

The same happens on a call, if using the external speaker or not.

I have factory reset the OS, and tried different SIM cards, to no avail.

The phone does not appear to get hotter when this happens, and it does not seem to be related to battery level.

Any help much appreciated, thanks

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