"Volume Control Button is not working"에 답변Ryan, this sounds like the button itself may be damaged. It may also be something as simple as adjusting the sound settings. Please refer to our Troubleshooting Guide for more information on possible solutions.
"Why is my battery life so short?"에 답변Ryan, there are two possible issues with your device: 1.) It may be that your battery needs to be replaced, or 2.) your charging port is damaged. Please refer to our Troubleshooting Guide for further assistance.