User manual
Table Of Contents
- Cover
- Legal
- Contents
- Getting Started
- Personalizing
- Changing the System Language
- Setting the Date and Time
- Changing the Ringtone and Notification Sound
- Turning System Sounds On/Off
- Adjusting Volumes
- Switching to Silent or Vibration Mode
- Using Do Not Disturb Mode
- Applying New Wallpapers
- Changing the Screen Brightness
- Protecting Your Phone With Screen Locks
- Protecting Your Phone With Screen Pinning
- Using Your Fingerprint
- Knowing the Basics
- Connecting to Networks and Devices
- Phone Calls
- Contacts
- Accounts
- Messaging
- Calendar
- Browser
- Camera
- Music
- TV Mode
- Google Play Store
- More Apps
- Settings
- Troubleshooting
- For Your Safety
- Warranty
- Specifications
131
Problem Possible causes Possible solution
Nano-SIM
card error
The nano-SIM card has
malfunctioned or is damaged.
Take the nano-SIM card to your
service provider for testing.
The nano-SIM card is inserted
improperly.
Insert the nano-SIM card
properly.
Debris is on the nano-SIM card
contacts.
Use a so, dry cloth to clean the
nano-SIM card contacts.
Unable to
connect to
the network
The nano-SIM card is 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.
Cannot
make
outgoing
calls
You have activated the Fixed
Dialing Numbers feature.
Disable this feature. See Phone
Calls – Adjusting Your Call
Settings – Using Fixed Dialing
Numbers.
PIN Code
blocked
You have entered an incorrect
PIN code three consecutive
times.
Contact your service provider.
Phone
crashes,
reboots,
freezes, or
cannot be
powered on
Some third-party soware
is not compatible with your
phone.
Uninstall the soware that may
be causing the problem.
Upgrade the phone soware.
Reset the phone to factory
status.
TROUBLESHOOTING