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So i have this 8900 i was told it restarts every now and then, after some tinkering i pinned down the cause, the phone has no audio at all (music, Videos, Ringtones, Voicenotes, call audio, Headset audio, even the trackball clicking sound) Now everytime the phone has in some way "sound" it freezes and eventually restarts, I tried updating it to 5.0,0.1067 (last one) and still nothing, i Took the phone apart and checked on the state of both speakers (device and speakerphone) they both look fine to me (that is: the foil membrane is fine, no metallic dust whatsoever, and no general dmg.<br><br>I was thinking that maybe i should get a new audio flex but that one looks functional to me, i also tried cleaning the celphone's motherboard and electrical contacts for dust/grease.<br><br>Any suggestions people?