hi guyz i got a major problem with my iphone 3g sound and before you reply search on the forum ive searched the entire internet and none of the solutions work for me that y im askin the problem is that sometimes i dont get sound, no unlock/lock, application, message sound whatsoever. I cant even take a call . ive tried doing the following and this happens: 1)play music from ipod and it just doesnt play. play button goes back to "play" 2)start soniclighter app and it says phone or microphone being used and shut it off before using this app 3) app "i am t-pain" doesnt start just goes back to the menu tried plugging in the headphones still dont play any sound! also sometimes when the sound is working the phone will auto hang and i have to restart and no sound again!!!! i bought my 3g second hand and when i got it none of these problems were there after i jailbroke it myself this stuff started happening! is it software or hardware??? any solution??? ive already tried evry solution on the internet !!