Hello & Welcome to Just Answer,
Sorry to hear of any issue you are having with your device.
To help you with this issue, may I ask:
1) The FULL Name & Model Number of the device you are working with?
2) The AGE of the device?
3) WHEN this issue first began (or was noticed)?
Please use the REPLY box below.
NOTE: I'm NOT hear a phone right now and will not be able to call for some time. So please try to reply back here.