when im making a call or answering, my cell starts to act weird sometimes. it turns itself off and on rapidly like 4 times, and when I dial *86 for voicemail it wont let me end the call by touching the END option, I have to touch * to end the call, and then it freezes and the icons wont respond when I touch them and I have to turn off the cell. ive already done the factory reset data., I dont know what to do????? anybody with similar problems????