If you owned the LG G4 smartphone and had the camera fail issue on your smartphone, then this article will help you to fix camera failure issue on your LG G4 smartphone. If your LG G4 smartphone delivers an unexpected message- “Warning: Camera Failed” on the smartphone screen.

how to fix camera failed issue on lg g4

If you are one of them who are facing such issues on their LG G4 device, then they can follow below-mentioned methods and steps to fix camera failed issue on your smartphone. If your device’s camera stops working suddenly, then you can also follow below-mentioned methods or steps to fix this issue. So, now follow below mentioned few steps to fix camera failed issue of your LG G4 smartphone.

Guide to Fix LG G4 Camera Not Working

Here we have mentioned three different methods which you can follow to fix the camera failure issue on your LG G4 smartphone.


Restart Device

This is very simple and easy method that you can perform on your LG G4 smartphone to fix camera failure issue or blank screen of your smartphone. If you are running your LG G4 for a long time, then you need to give rest to your smartphone and restart your LG G4 mobile phone. Restarting the smartphone can fix all minor issues of your smartphone.

To restart your smartphone, only you have to press and hold the power button. After that tap the “Power Off” option to turn off the device. Now, wait for 5 to 10 minutes then again press the power button to restart the smartphone. With this whole process, your LG G4 smartphone gets to rest from processing things for you. And after the restart, your smartphone performs better than before.

See also: Best LG G4 Accessories


Clear Data & Cache of “Camera” App

In this method, only you have to clear cache or data of the Camera app using the settings of your smartphone. If you are facing the camera failed issue with your LG G4 smartphone then you can fix this issue via clearing the data and cache of the camera app. This clears all temporarily saved data of the camera.

With this method, you can easily fix your all kinds of camera issue on your LG G4 device or any other Android-based smartphone. So follow below mentioned few simple steps:

Step 1: Open the Settings of your LG G4 smartphone
Step 2: In the settings, scroll down to “Apps” and open it
Step 3: Here, go to the “All” section and scroll down to “Camera” app
Step 4: Now, tap on “Camera” to open it,
Step 5: From the “Camera” info, tap on “Clear Cache” and “Clear data” option to clear app data and cache data of the Camera app

After that, restart your LG G4 smartphone. This will clear all cache and app data of all apps that you have installed on your smartphone.


Wipe Cache partition

By wiping the cache partition of your LG G4 smartphone, you can fix camera failed issue on your LG G4 smartphone. This method could fix all camera related and other minor issues of your smartphone. To clear cache partition of your LG G4 smartphone, you will need to boot your LG G4 smartphone into the Recovery mode.

After that, you will be able to clear or wipe cache partition of your smartphone easily. Now follow below mentioned few steps to clear or wipe cache partition of your LG G4 smartphone.

Here are the few steps, which you can follow to wipe cache partition of LG G4 smartphone:

Step 1: Turn off your smartphone
Step 2: Now press the “Power” button and “Volume Down” button until you see the LG Boot animation
Step 3: Release the “Power” button for a second, and press it again
Step 4: Now you are in recovery mode, here you have to choose “Wipe Cache Partition” option
Step 5: Press the power button to select the option; this will wipe cache partition of your smartphone.

After that, you have to reboot your LG G4 smartphone.


By following those steps, you will see your device’s camera start working again. If you still see your camera is not working properly on your device, even after following those steps. Share your comments below, to ask for help from us.