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Appendix
FAQ and troubleshooting
This section lists frequently asked questions that may arise during the use of your
smartphone, and gives easy answers and solutions to these questions.
Aspect Question Answer
Audio Why is there no
sound coming from
the device?
If the headset is plugged into the device,
the speaker is automatically shut off.
Disconnect the headset.
Check that the device volume setting is
not muted.
Check that the volume control is not at its
lowest setting.
Multimedia files Why can’t I view my
video files?
You may be trying to view a video that is
not supported. Refer to "Multimedia" on
page 58.
Why can’t I play my
music files?
You may be trying to play a file that is not
supported. Refer to "Multimedia" on
page 58.
System
information and
performance
How do I check the
OS version of my
device?
Tap Settings > About phone to check
the OS version (Build number) and other
hardware and software information.
Power I can’t turn on the
device.
The battery power may be depleted.
Recharge the device. Refer to "Charging
the battery" on page 7 for more
information.
RAM / ROM How do I check the
RAM and ROM
memory status?
To check the ROM status, tap Settings >
Storage.
To check RAM status, tap Settings >
Apps > RUNNING.
Internal storage My device’s available
internal storage is full
or almost full.
Uninstall applications to increase
available storage. See "Uninstalling an
application" on page 49.
