Samsung Galaxy M31 128GB, Руководство пользователя

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Appendix
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The touchscreen responds slowly or improperly
•
If you attach a screen protector or optional accessories to the touchscreen, the
touchscreen may not function properly.
•
If you are wearing gloves, if your hands are not clean while touching the touchscreen,
or if you tap the screen with sharp objects or your fingertips, the touchscreen may
malfunction.
•
The touchscreen 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 updated to the latest version.
•
If the touchscreen is scratched or damaged, visit a Samsung Service Center.
Your device freezes or encounters a fatal error
Try the following solutions. If the problem is still not resolved, contact a Samsung Service
Center.
Restarting the device
If your device freezes or hangs, you may need to close apps or turn off the device and turn it
on again.
Forcing restart
If your device is frozen and unresponsive, press and hold the Side key and the Volume Down
key simultaneously for more than 7 seconds to restart it.
Resetting the device
If the methods above do not solve your problem, perform a factory data reset.
Launch the
Settings app and tap General management
→
Reset
→
Factory data reset
→
Reset
→
Delete all . Before performing the factory data reset, remember to make backup
copies of all important data stored in the device.
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 dialing.
•
Ensure that you have not set call barring for the incoming phone number.