Hinge area frayed? If you open and close it too much, the display sensitivity will worsen and require a restart. Screen film is dirty, shows signs of use. The back and sub-display seem clean. Used it new for about six months. Selling because I bought a new smartphone. The device is paid in full, so there are no usage restrictions. No claims and no returns, please. *The model name, color, and storage capacity were not available as options, so they are approximate.