How to fix LG V40 ThinQ won’t charge issue

Are you having trouble charging your LG V40 ThinQ? You’re in luck as this post will cover this issue. Learn what to do about this problem by following our suggestions below.

How to fix LG V40 ThinQ won’t charge issue

Fixing a charging issue can be caused by a number of things. Below are the troubleshooting steps to do to figure out the cause of your problem.

Refresh the system. Sometimes, this simple procedure can fix bugs that developed after the system has run for a long time. By manually forcing your Note8 to reboot, you’re basically simulating a battery pull, which, in older mobiles with removable battery packs, was an effective way to refresh the system. If you haven’t tried this one yet, just press and hold the Power button and Volume Down at the same time until the device powers off, approximately 8 seconds, then release. This will restart your phone like it normally does but it’s memory will be refreshed and its apps and services will reloaded. If the issue continues after this, then try the next procedure.

Check the port. Your phone’s charging port is exposed to dirt, pocket lint, or foreign objects. Sometimes, charging may not work if there’s something that blocks the charging cable. If you regularly use your LG V40 ThinQ in dusty places, consider cleaning the port with a can of compressed air. This will blow out dust and particles from the port. If you see dirt or lint inside that won’t go away, try to see if it can be removed by air. If not, don’t force the issue and leave it as it is. You don’t want to stick anything in the port as doing so might damage it.


If your LG V40 ThinQ got wet, or if you think there’s moisture in the port, avoid using compressed air to dry it out. Doing so might push water or moisture further inside, causing hardware damage to the logic board. Instead, consider using a hand vacuum to suck water out. Just make sure not to place the port too near the vacuum cleaner.

In general, there’s nothing much that you can do if there’s damage to the port, or if you think there’s dirt inside that you can’t remove. You may want to ask professional help to deal with that.

Use another charger and cable. Like your LG V40 ThinQ, the charger can break too. The charging cable in particular can easily break if you don’t take care of it. There are hundreds of tiny wires inside the cable that can easily break. If there are enough wires that are broken, the cable may no longer be able to provide the necessary power when charging. This can cause slow charging issue or even total stop to it. For troubleshooting purposes, we recommend that you use another set of known working charging cable and adapter. If you know someone with LG V40 ThinQ, try to use his or her charger and cable and see if there’s a difference.

If you can’t find an official set of LG charging cable and adapter, try to visit your local LG store and see if you can charge there. If the phone charges fine there, that means that your own cable or adapter is defective. Replace the damaged or non-working one to fix your problem.

Charge on Safe Mode. There may be a third party app causing your problem. Sometimes, poor coding on apps can lead to conflicts with Android OS. To check if one of the apps is to blame, you can try to restart the phone to safe mode then charge it. Safe mode suspends all third party apps so if your phone charges normally, you can bet a bad app is the culprit.

To restart to safe mode:

  1. With the screen on, press and hold the Power key.
  2. In the options menu that displays, press and hold Power off.
  3. When prompted to restart in Safe Mode, tap OK.
  4. After your device restarts, it displays Safe mode at the bottom of the screen.
  5. Use the device for at least 24 hours while it’s on safe mode. This should give you enough time to see if there’s any difference in performance.

If there’s no problem at all, you can try to pinpoint the app by doing these steps:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.

Charge using a computer. Some LG users in the past were able to fix slow or freezing touchscreens in the past by charging their device thru a computer. If you haven’t tried this trick, be sure to do it. It’s simple and easy to do.

Recalibrate the battery.

If you can get the phone to charge again, make sure that you also calibrate the battery. This will help the Operating System get more accurate readings of the battery levels. Here’s how:

  1. Drain the battery completely. This means using your device until it powers down by its own and the battery level reads 0%.
  2. Charge the phone until it reaches 100%. Be sure to use original charging equipment for your device and let it charge up completely. Do not unplug your device for at least two more hours and also don’t use it while charging.
  3. After the elapsed time, unplug your device.
  4. Restart the device.
  5. Use your phone until it completely runs out of power again.
  6. Repeat steps 1-5.

Install updates. Keeping Android OS and apps updated should also be done. Some known bugs are fixed this way, not to mention the potential of preventing more bugs from developing.

Factory resetThis is a drastic solution for this case but you may need to do it should nothing work after exhausting all troubleshooting steps. Below are the two ways to factory reset your device.

Method 1: How to hard reset on LG V40 ThinQ from Settings menu

  1. Create a backup of your personal data.
  2. From the Home screen, tap Settings.
  3. Tap the ‘General’ tab.
  4. Tap Restart & reset.
  5. Tap Factory data reset.
  6. If desired, tap the Erase SD card checkbox.
  7. Tap RESET PHONE.
  8. Tap Delete all.
  9. Tap RESET

Method 2: How to hard reset on LG V40 ThinQ from Settings menu

If your phone has a problem and you are unable to power it back on normally, a hard reset using its hardware buttons is useful. Factory reset using this method will erase all your files. If you are unable to create a copy of your data before the problem hits, there will be no way for you to recover them after a factory reset.

  1. Create a backup of your personal data.
  2. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  3. Press and hold the Power and Volume down buttons.
  4. When the LG logo appears, quickly release and then re-hold the Power button while continuing to hold the Volume down button.
  5. When the ‘Delete all user data (including LG and carrier apps) and reset all settings’ message appears, use the Volume down button to highlight Yes.
  6. Press the Power button to reset the device

Get help from LGIf the cause of the charging problem is software-related, one of the solutions above should help. However, if none has worked so far, there might be a problem with the hardware. Contact LG in order to have the phone repaired or replaced.

Workaround: Use wireless charger. The LG V40 ThinQ is wireless charging capable so try to switch to wireless charging while you’re weighing your options. Just make sure that your wireless charger is certified by LG.