User manual
Table Of Contents
- About This Manual
- Getting Started
- Personalizing
- Changing the System Language
- Setting the Date and Time
- Changing Ringtones
- Turning On/Off System Sounds
- Adjusting Volume
- Using Do Not Disturb Mode
- Applying New Wallpapers
- Changing Screen Brightness
- Setting the Theme
- Setting the Home Screen Transition Effect
- Protecting Your Tablet With Screen Locks
- Protecting Your Tablet With Screen Pinning
- Knowing the Basics
- Connecting to Networks and Devices
- Contacts
- Web Accounts
- Calendar
- Web Browser
- Camera
- Gallery
- Music
- Video Player
- FM Radio
- Sound Recorder
- More Apps
- Settings
- Troubleshooting
- Health and Safety Information
129
Problem Possible causes Possible solution
Unable to connect
to the network
4G LTE nano-SIM card invalid. Contact your service provider.
You are not within the network’s service
area.
Check the service area with your
service provider.
Poor signal. Move to an open space, or if you are
inside a building, move closer to a
window.
Device crashes,
reboots, freeze, or
cannot be powered
on
Some third-party software is not
compatible with your device.
Reset the device to factory status.
Uninstall the software that may cause
the problem.
Upgrade the device software.










