Not having a properly working phone can be a huge inconvenience. That's certainly not the impression that we want to leave on you. Rest assured that we are committed to getting this resolved for you once and for all. May I ask is there any physical or liquid damage on your iPhone 4? Also, have there been any 3rd party apps recently downloaded on the device? I would suggest running the battery completely down then recharging it to 100% to see if this corrects the issue. If not then try performing a restore on the device using iTunes from a computer. Once you have done so then please share your findings, in case more assistance is needed.
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