Samsung SM-T531 User Manual page 114

Troubleshooting
The touch screen responds slowly or improperly
If you attach a protective cover or optional accessories to the touch screen, the touch
screen may not function properly.
If you are wearing gloves, if your hands are not clean while touching the touch screen,
or if you tap the screen with sharp objects or your fingertips, the touch screen may
malfunction.
The touch screen may malfunction in humid conditions or when exposed to water.
Restart your device to clear any temporary software bugs.
Ensure that your device software is upgraded to the latest version.
If the touch screen is scratched or damaged, visit a Samsung Service Centre.
Your device freezes or has fatal errors
If your device freezes or hangs, you may need to close applications or reinsert the battery and
turn on the device to regain functionality. If your device is frozen and unresponsive, press and
hold the Power button for more than 7 seconds to reboot.
If this does not solve the problem, perform a factory data reset. On the Applications screen,
tap Settings General
Erase everything. Before performing the factory data reset, remember to make backup
copies of all important data stored on the device.
If the problem is still not resolved, contact a Samsung Service Centre.
Calls are not connected
Ensure that you have accessed the right cellular network.
Ensure that you have not set call barring for the phone number you are dialling.
Ensure that you have not set call barring for the incoming phone number.
Others cannot hear you speaking on a call
Ensure that you are not covering the built-in microphone.
Ensure that the microphone is close to your mouth.
If using a headset, ensure that it is properly connected.
Backup and reset Factory data reset
114
Reset device