Samsung SM-X115 User Manual page 130

Appendix
The touch screen responds slowly or improperly
If you attach a screen protector or optional accessories to the touch screen, the
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touch screen may not function properly.
If you are wearing gloves, if your hands are not clean while touching the touch
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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.
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Restart your device to clear any temporary software problems.
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Ensure that your device software is updated to the latest version.
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If the touch screen is scratched or damaged, visit a Samsung Service Centre or an
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authorised service centre.
Your device freezes or encounters a fatal problem
Try the following solutions. If the problem is still not resolved, contact a Samsung
Service Centre or an authorised service centre.
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 button and the Volume
Down button simultaneously for more than 7 seconds to restart it.
Resetting the device
If these methods do not solve your problem, perform a factory data reset.
Open Settings 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.
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