User manual

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For Assistance
The following topics address areas of support for your phone, including troubleshooting, specifications,
account information, warranty information, and customer service contact information.
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, press and hold the
Power/Lock key for a few seconds to restart your phone forcibly. Data that was being edited is erased
after your phone is powered on again.
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 and tap Settings > Network & internet > Airplane mode.
Answer 4: Is data communication disabled? To check that data communication is enabled:
 From home, swipe up and tap Settings > Network & internet > Mobile network >
Mobile data.
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.
Answer: Applications cannot be installed with only a little free space on the phone or SD card. To
check free space, see Storage Settings. Applications not supported by your phone cannot be
installed.
Question: Cannot unlock screen.
Answer: Turn the phone on again. If you are unable to turn the phone off, press and hold the
Power/Lock key for a few seconds to restart your phone forcibly. Data that was being edited is erased
after your phone is powered on again.