I just bought a new Samsung Exhibit II, unlocked, and it keeps turning off by itself and I have to turn it on whenever I need to use it. I turn it on and if I don't use it continuously, it turns off again. Since I bought it online and not on contract, plan to use it overseas, I can't return it to shop and don't want to send it back to eBay without knowing if it's something I am doing wrong. I have set it on with the screen going off in 30 seconds but want the phone stay on and all I have to do is touch the screen to use it. Thank you.