The LG Optimus L90 D415 user manual contains reference information such as phone layout, Installing the Micro SIM card and battery, Inserting a microSD card, Formatting the microSD card, Locking and unlocking the screen, Using Hard Reset (Factory Reset), Installing an Open Source Operating System, using home screen, Connecting to Wi-Fi networks, USB tethering, using bluetooth, Smartphone Mobile Hotspots, making a call, using contacts and messages, using camera and camcoder, Recording a quick video, Using QuickRemote, T-Mobile TV, ThinkFree Viewer, LG Backup, Restoring smartphone data.
Then about using browser, Google+, Access the Settings menu, LG Mobile Phone Software update, troubleshooting problem, safety and more.
LG Optimus L90 D415 Troubleshooting (page 89):
- Micro SIM error
- No network connection/ Dropped network
- Codes do not match
- No applications can be set
- Calls not available
- Phone cannot be switched on
- Charging error
- Number not allowed
- Impossible to receive / send text and picture messages
- Files do not open
- The screen does not turn on when I receive a call
- No sound
- Hangs up or freezes
Table of contents for LG Optimus L90 D415 user guide manual:
- Service activation
- Important notice
- Your home screen
- Google account setup
- Connecting to networks and devices
- Calls
- Contacts
- Messaging
- Camera
- Camcorder
- Functions
- Multimedia
- Utilities
- The web
- Settigs
- Phone software update
- Trademarks
- Accessories
- Troubleshooting
- For your safety
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