What to Check First
- Software Version History.
- Software Update Instructions.
- From the Home Screen, tap Apps > Settings > General Tab > About phone.
- View the current software under Software version .
- Android KitKat, software version US99023a - Release date April , 2016 General maintenance.
- When the software update is available and downloaded, the update icon will display in the status bar at the top of the screen. Swipe down from the top and tap the notification.
- Your device will restart to perform the update.
- When the update is complete, your phone will restart and transition through a series of alerts stating Android is upgrading . Once your phone has powered on you will be notified that the software update successfully installed. Tap OK to close the notification.
- Tap Update Center > Software Update > Check now for update to manually check for a new update.
- You will be prompted if a new software update is available. Continue from Software Update , step 1.
Why This Can Happen
Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.
Safety and Model-Specific Guidance
Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.
Frequently Asked Questions
What should I check first for LG G3: US990 Software Update?
Software Version History.
When should I stop troubleshooting and contact LG?
Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.
Does this guidance apply to every LG model?
Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.