Samsung SPH-L720ZKRBST Galaxy S4 Boost, Black Mist

User Manual - Page 172

For SPH-L720ZKRBST.

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For Assistance 161
For Assistance
Common phone problems and some troubleshooting solutions are listed below for your convenience.
Troubleshooting
Check the questions and answers below for troubleshooting solutions for common phone issues.
Check Here First
Problem: Phone freezes/operation is unstable.
Solution: Turn the phone on again. Data that was being edited is erased after your phone is powered
on again.
Problem: Operation is unstable after a new application was installed.
Solution: The newly installed application may be the cause. Uninstall the application. See Uninstall
an App.
Problem: Cannot use phone, mail, or Internet.
Solution 1: Check whether you are in an area where signal is weak or outside of the service area.
Solution 2: Power the phone on again.
Solution 3: Is the phone in Airplane mode? To check whether Airplane mode is enabled:
From home, tap Apps > Settings > CONNECTIONS tab > More networks >
Airplane mode.
Solution 4: Is mobile data disabled? To check that mobile data is enabled:
From home, tap Apps > Settings > CONNECTIONS tab > Data usage > Mobile
data.
Problem: Battery level goes down quickly.
Solution: Are you in an area where signal is weak, or have you been in an area with no coverage for
a long period? Calling where signal is weak or being out of service area uses a lot of battery.
Problem: Cannot install applications.
Solution: Applications cannot be installed with only a little free space on the phone. To check free
space, see Storage Settings. Applications not supported by your phone cannot be installed.
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