I'm planning to sell my One S C2 by the end of this month. I've already found a potential buyer, and she has seen the condition of the phone. I'd rate it as an 8/10 condition but she thinks it's a 9/10. It's a 22 months old device.I've also got ViperC2 5.0.0 (Android 4.1.2) installed on it. How...