User manual
Table Of Contents
- Getting Started
- Personalizing
- Changing the System Language
- Setting the Date and Time
- Changing Ringtone and Notification Sound
- Turning On/Off System Sounds
- Adjusting Volume
- Switching to Silent or Vibration Mode
- Using Do Not Disturb Mode
- Setting Notification Mode
- Applying New Wallpapers
- Setting the Theme
- Changing Screen Brightness
- Setting the Home Screen Transition Effect
- Protecting Your Phone With Screen Locks
- Protecting Your Phone With Screen Pinning
- Knowing the Basics
- Connecting to Networks and Devices
- Phone Calls
- Contacts
- Web Accounts
- Messages
- Calendar
- Chrome
- Camera
- Gallery
- Music
- Video Player
- More Apps and Features
- Google Play™ Store
- Settings
- Troubleshooting
155
Problem Possible causes Possible solution
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.
The signal is poor.
Move to an open
space, or if you are
inside a building,
move closer to a
window.
PIN Code
blocked
You have entered an incorrect
PIN code three consecutive
times.
Contact your
service provider.
If the service
provider provides
the nano-SIM
card’s PUK code,
use the PUK caode
to unlock the nano-
SIM card.