well i just bought a new evo from ebay couple of days ago i just got it yesterday it was used but in excellent condition from the outside! well after a couple of apps i installed it was running great for like half and hour no problem. I started to charged it on the computer then it got really hot and started to reset it self over and over again!. so i took out the battery and waited a couple of minutes then put the battery back on! it was running good again, but then it just would just start to reset it self when ever it wanted. i only had the evo for about no more than 2 hours and it was doing some crazy stuff. so i decided to return it back to the seller. by the way the phone came flashed to metro pcs! so my question is how can i erase everything that i put it on there including the market account that i created without unflasing the phone back to sprint! thanks!!!