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LG Optimus 3D Troubleshooting
The LG Optimus 3D is a 3D-enabled Android smartphone released by Korean company LG in 2011. In the United States, it is also known as the LG Thrill 4G.
- Phone won't turn on
- Power/Lock Button Not Working
- Device Does Not Hold a Charge
- Memory Card Unrecognized
- Device Running Slowly
Phone won't turn on
No matter what you do, you can't get your phone to turn on. The phone may start to boot-up, showing the LG logo, but gets no further.
Battery Out of Charge
Plug your phone in and let it charge for a few hours. If your battery is below a 20-30% charge, it will not turn on.
Dirty Charging Port
Make sure there is no debris stuck in your phone’s charging port. You can use isopropyl alcohol on a cotton swab to clean up any residue or dirt from the contacts.
Damaged or Incorrect Charging Cable
Make sure you are using the correct charging cable, and that it is not damaged. For example, make sure none of the internal wires are exposed. You can use isopropyl alcohol on a cotton swab to clean the contacts if they appear dirty.
Open battery cover and replace with new battery. You can find instructions on how to do that in this guide. Make sure it is charged up before trying to turn your phone on again.
Corrupt SD Card
Remove the battery cover, and remove the SD card. Try turning your phone on without the SD card.
Corrupt Internal Software
Perform a hard reset. You can find direction to do that here.
Power/Lock Button Not Working
Your phone is turned on, but the power/lock button won't work. You are unable to lock or unlock your screen.
Button is Stuck
Use a thin object, such as a unbent paperclip, to un-stick or jiggle the button.
Phone is Frozen
Remove the battery, wait a few seconds, replace the battery, and try turning the phone on again.
Loose Internal Component
Pinch the top right corner of the phone while pushing the power/lock button. Loose soldering is a relatively common problem reported on the power button, and pinching it together is a temporary fix.
Damaged Internal Component
It is possible that the cable connecting the button to the motherboard was damaged. Follow this guide for instructions on how to replace it.
Device Does Not Hold a Charge
While your phone is plugged in, it shows that the battery is full, or in the process of charging. However, when you unplug it, it either completely turns off, or the battery only lasts for an hour or two, even if you aren't using it heavily.
Open the battery cover and remove the battery. Replace with a new one.
Battery Needs Recalibration
Sometimes, the software that the phone uses to calculate the battery's remaining charge gets confused, and needs to be reset. This site has detailed directions on how to do that.
Make sure your apps and phone operating system are all up-to-date. You can check if your apps need to be updated by checking the Google Play Store. You can check if the operating system needs to be updated by going to your phone’s system page and checking under “About this Phone”.
Memory Card Unrecognized
Your device is unable to access the information stored within the SD card. You are still able to access information in the internal memory.
Comment: [Rephrase to be a cause.] Reboot Phone
Turn your phone off and on again.
Card is Loose or has Poor Connection
Remove the SD card and clean the contacts with isopropyl alcohol on a cotton swab. Make sure when you place it back into the slot that it is sitting firmly within the slot.
Make sure your phone is updated to the most recent software available. If the problem appeared just after updating, try reverting to the most recent software version that still worked.
Bad SD Card
The card itself may have been corrupted. Replace with a new card.
Internal Component Damaged
If the card itself is not the problem, and it is not a software bug, there may be a problem with either the SD/SIM card board or the motherboard. Click the provided links to be taken to the replacement guides.
Device Running Slowly
Your phone takes a long time to respond. When you touch your screen, your phone takes a long time to react to the touch. Games and programs may not run well, or may just crash.
Too Many Open Apps
Go to Settings → Applications → Running Services.
From this menu, you can close apps that do not need to be running the background.
Phone Storage is Too Full
If your phone’s storage is too full, it may cause it to run slowly. Some storage cleanup methods include:
- Delete old text messages. If you are a text message hoarder, these take up more space than you may realize, especially MMS messages.
- Delete old photos, videos, or audios. You can back these up to your computer by connecting your device and transferring the files.
- Clear your cache. Access your applications list through the settings menu, and select an app. Scroll down until you see the “Clear Cache” button, and click on it.
- Clear your downloads folder. On newer versions of the Android OS, this can be accessed directly through the application list.
- Uninstall unused or unwanted apps. If you haven't played that game for months, you probably won't pick it back up.