1.
Back up any important data that is saved on the internal memory of your device to a
memory card or other non-internal memory. If you have any encrypted files stored on an
SD card, you should also remove the encryption to ensure you can still access them
after the reset.
2.
Find and tap Settings > System > Backup & reset.
3.
Tap Factory data reset > Reset phone.
4.
If required, draw your screen unlock pattern or enter your screen unlock password or
PIN to continue.
5.
To confirm, tap Erase everything.
Your device does not revert to an earlier software version of Android when you
perform a factory data reset.
To avoid permanent damage to your device, do not interrupt a factory data reset
procedure.
1.
Back up any important data that is saved on the internal memory of your
device to a memory card or other non-internal memory. If you have any
encrypted files stored on an SD card, you should also remove the encryption to
ensure you can still access them after the reset.
2.
Find and tap Settings > Backup & reset.
3.
Tap Factory data reset > Reset phone.
4.
If required, draw your screen unlock pattern or enter your screen unlock
password or PIN to continue.
5.
To confirm, tap Erase everything.
Your device does not revert to an earlier software version of Android when
you perform a factory data reset.
17
、
Multimedia messaging isn't working
Check that MMS (Multimedia Messaging Service) is supported by your network operator
and/or subscription.
Download settings for internet and MMS automatically.
If the settings cannot be downloaded to your device check the signal strength of
your mobile or Wi-Fi network connections. Move to an open location free from
obstructions or get close to a window and then try again.
You can manually add internet and messaging settings on your device at any time. If
necessary, contact your network operator for the required information.
