User's Guide

106
For assistance
Troubleshooting
Check the questions and answers below for troubleshooting solutions for common phone issues.
Check here first
Question: Phone freezes/operation is unstable.
Answer: Turn the phone on again. If you are unable to turn the phone off, remove and replace
the Battery, and then turn the phone on again. Data that was being edited is erased after your
phone is powered on again.
Question: Operation is unstable after a new application was installed.
Answer: The newly installed application may be the cause. Uninstall the application in Safe
mode. To turn the phone on in Safe mode:
• Press and hold the Power key > touch and hold Power off, read the disclaimer for safe
mode, and then tap OK.
o After turning the phone on in Safe mode, "Safe Mode" appears at lower left.
o After restarting in Safe mode, your phone can be powered on as usual.
o Before turning the phone on in Safe mode, it is recommended that you back up im-
portant data.
o By powering the phone on in Safe mode, added widgets may be deleted.
Question: Cannot use phone, mail, or Internet.
Answer 1: Check whether you are where signal is weak or out of service area.
Answer 2: Power the phone on again.
Answer 3: Is the phone in Airplane mode? To check that Airplane mode is canceled:
• From home, swipe up to access Apps, and tap Settings > Network & Internet > Air-
plane mode.
Answer 4: Is data communication disabled? To check that data communication is enabled:
• From home, swipe up to access Apps, and tap Settings > Network & Internet > Mobile
network.
Question: Battery level goes down quickly.
Answer: Are you where signal is weak or have been out of service area for a long period?
Calling where signal is weak or being out of service area uses a lot of Battery.
Question: Cannot install applications.