Acer DME330NFCCE 用户手册
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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.
smartphone, and gives easy answers and solutions to these questions.
Aspect
Question
Answer
Audio
Why is there no sound
coming from the
device?
coming from the
device?
If the headset is plugged into the device, the
speaker is automatically shut off. Disconnect
the headset.
speaker is automatically shut off. Disconnect
the headset.
Check that the device volume setting is not
muted.
muted.
Check that the volume control is not at its
lowest setting.
lowest setting.
Multimedia files
Why can’t I view my
video files?
video files?
You may be trying to view a video that is not
supported. Refer to "Multimedia" on
page 47
supported. Refer to "Multimedia" on
page 47
.
Why can’t I play my
music files?
music files?
You may be trying to play a file that is not
supported. Refer to "Multimedia" on
page 47
supported. Refer to "Multimedia" on
page 47
.
System information
and performance
and performance
How do I check the OS
version of my device?
version of my device?
Tap Apps > Settings > About phone to check
the OS version (Build number) and other
hardware and software information.
the OS version (Build number) and other
hardware and software information.
Power
I can’t turn on the
device.
device.
The battery power may be depleted. Recharge
the device. Refer to "Charging the battery"
on page 7
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?
RAM and ROM memory
status?
To check the ROM status, press the Menu
button and then tap System settings >
Storage.
button and then tap System settings >
Storage.
To check RAM status, tap Apps > Settings >
RUNNING.
RUNNING.
Internal storage
My device’s available
internal storage is full or
almost full.
internal storage is full or
almost full.
Uninstall applications or move applications to
the SD card to increase available storage. See
"Managing applications" on page 38.
the SD card to increase available storage. See
"Managing applications" on page 38.
Unlock pattern
I forgot my unlock
pattern.
pattern.
After a certain number of wrong entries, you
will be presented with an option to reset your
pattern. Tap Forgot pattern? and enter your
google account username and password.
will be presented with an option to reset your
pattern. Tap Forgot pattern? and enter your
google account username and password.
Note:
You must have an active Google
account on the smartphone.
Alternatively, you restore your smartphone to
factory settings. See "Restoring to factory
settings" on page 39
factory settings. See "Restoring to factory
settings" on page 39
.