The LG V40 ThinQ is another rounded flagship of the company that certainly deserves more recognition than it gets. It's also one of the few devices with a focus on a fantastic audio experience, and of course, offers everything we expect from a high-end smartphone of the current generation.
However, as with any smartphone, the device is not without problems. We've summarized some of the most common problems the LG V40 owners face and possible solutions to these issues!
Disclaimer: Not every owner is faced with these problems of the LG V40. It is more than likely that you will not encounter any of these problems.
Issue # 1
– Camera Issues
There have been some issues with the LG V40 camera that have been reported since the device was launched. Some users have experienced blurry photos or a long delay while trying to take a picture. Some users have found that the device does not switch to the telephoto lens as expected. Others have also seen that pictures are grainy, greenish and pixelated.
- The blurry photos and the delay appear to be due to certain settings that are enabled by default, such as: Auto Super Bright Mode and Auto HDR. These features allow great photos, but if you're looking for better focus and faster shutter speeds, you may need to turn them off until a software update addresses this issue.
- Regarding the problem of the telephoto lens Most of the time it does not work as expected. It should be noted, however, that bright lighting conditions are required to operate, and indoor lighting may not.
- When images appear grainy, pixelated, greenish or with vertical lines, this is probably a hardware issue. The best option is a replacement.
Issue # 2 – Auto Brightness Issues
Some users have found that the auto brightness feature does not work. It works as expected. In some cases, users have found that even in very dark areas, the brightness does not drop below 11 or 12 percent. This was a problem with the LG V30 and the LG G7 and also seems to be one of the most common problems of the LG V40.
- This seems to be a calibration problem with automatic brightness. Manually set the brightness slider to zero in a dark area even when the auto brightness is turned on. Now turn the automatic brightness on and off, and everything should work as expected.
- However, there are some versions of the device where the slider bar can not be adjusted when auto brightness is enabled. In this case, deactivate the automatic brightness, set the brightness manually to a low value and activate the function again.
- You can also download and use the Lux Auto Brightness app available on the Google Play Store. This is one of the best tools to better control the device's automatic brightness function. The free version of the app can be found here.
Issue 3 – Security Issues – Fingerprint Scanner and Face Unlock
Features such as face unlock and fingerprint scanners were generally quick and accurate for most users, but some had problems to unlock these devices.
- You can simply try to delete and re-assign the fingerprints stored on the device, and you can even save the same fingerprint twice, which has worked for some users.
- In other cases, clearing the cache has solved the trick. Go to Settings – General – Phone Management – Device Memory and tap Internal Memory. Then tap on "Cached Data" and delete it.
- For some users, the type of screen protection used seems to affect the performance of the fingerprint scanner (as well as the functionality of the Always On Display). If the screen protector is a type that covers the notch with a black border and clipping for cameras and speakers only, it will affect the AOD function and the fingerprint scanner.
- The face unlock seems to work fine, but users have found that an image can be used to fool it. To avoid this, you should select "Advanced Mode". If face unlocking does not work, you can scan your face several times to improve accuracy.
Issue # 4 – Connection Issues
As with any new device, connection problems with Bluetooth and Wi-Fi are common issues with the LG V40. Both Wi-Fi and Bluetooth issues are common in this device.
LG V40 Wi-Fi Problems
- One of the most common problems with the LG V40 is due to Wi-Fi connections. This issue seems to be related to the aggressive battery saver mode of the Android 8.0 Oreo. Go to Settings> General> Battery> Power Saving Exclusions and make sure Wi-Fi is added to this list. You can also add other apps and features that may not work as expected due to the battery saver mode.
General Wi-Fi Issues
- Turn off the device and the router for at least 10 seconds. Then turn it back and try the connection again.
- Use the Wi-Fi Analyzer to check how full your channel is, and switch to a better option.
- Forget the Wi-Fi connection by selecting Settings> Wi-Fi and long tap on the desired connection, then select "Forget". Please retype the details and try again.
- Make sure the router firmware is up-to-date.
- Check the applications and software on the device is up to date.
- Go to Wi-Fi> Settings> Advanced Make a note of the MAC address of your device and make sure that access to the MAC filter of the router is possible.
- For vehicle connection problems, refer to the manufacturer's manual for the vehicle and the vehicle and reset the connections.
- Make sure you do not miss an important part of the connection process.
- Go to Settings> Bluetooth and make sure nothing needs to be changed
- Go i nto Settings> Bluetooth and delete all previous pairings and set them from scratch.
- For problems with multiple device connections, this issue can only be resolved by a future update.
LG V40 Issues where the only option is to wait for a software update or get a replacement
There are currently no workarounds available for some software bugs. The only option is to wait for LG to fix the problem in an official update. In some cases, this can be a hardware problem. In that case, the only option is to get a replacement.
- Messages are not received – Some users have noticed that messages are delayed on the phone. This seems to be a problem with the current LG Messages app. Users have found that the Google Messages app or other alternative works well. However, until an update fixes this issue, you should upgrade your default messaging app.
- Smart Lock Issue – Even though users have done so Trusted Places. You have noticed that the feature does not unlock the phone. This is a GPS problem and a reboot fixes the problem in general, at least for a while. Smart Lock has always been a huge success and does not seem to be different with the LG 40.
- Green hue appears on screen – Not a few users have noticed a greenish hue above the ad, which eventually becomes more opaque and obscures the information on the screen. This is definitely a hardware issue and the only option here is a replacement.
- A static sound from the speaker – Some users have noticed a click or static sound coming from the speaker, even when the volume is set, it is not set to the highest level. This is another hardware problem and the device should be replaced with a new one.
Instructions – Retrieve app drawer, app scaling and hiding the score
 These are not real issues, but rather hidden in the settings menu, and some may not know how to enable these features.
- No app drawer: By default, the LG V40 comes without an app drawer. All your apps are on the home screens, and using folders is one of the ways to organize things. Fortunately, LG offers a simple solution to bring back the app drawer, and you do not have to switch to another launcher to get the app drawer back. Go to Settings> Display> Home screen> Select Start> Home and App Drawer .
- App Scaling: The LG V40 display is displayed with the default aspect ratio of 18: 9. However, some apps do not use the entire screen, so black bars appear at the top and bottom. App developers have updated their apps to reflect this aspect ratio and score. LG also has a solution. Go to Settings> Display> App Scaling and you can enable "Fullscreen (18: 9)" in any app that supports it.
- Hide Hit: If You Do not LG is a fan of the notch and provides an easy way to hide it. Go to Settings> Display> New Second Screen . Set "Custom" and set the appearance of the status bar as you like it.
Guides – Soft Reset, Hard Reset, Boot to Safe Mode, Clear Cache Partition
- When the screen does not respond, press and hold the power key and the volume down key for 10 seconds or until the unit restarts.
- Turn off the device.
- Press and hold the power key and the volume down key. Release both buttons when the System Restore screen is displayed.
- Use the volume keys to navigate to the factory settings and press the power button to confirm.
Starting in safe mode
- With the phone turned on, press and hold the power button until the shutdown options appear. Press and hold the "Power Off" option until a confirmation message appears, then tap OK. This booms the device in safe mode.
- Press and hold the power key and the volume down key. Release both buttons when the System Restore screen is displayed. Use the volume keys to navigate to Safe Mode and confirm the confirmation.
Clear cache partition
- Turn off the device.
- Press and hold the power key and the volume key. Release both buttons when the System Restore screen is displayed.
- Use the volume keys to navigate to "Wipe Cache" and press the power button to confirm.
These are the most common problems of the LG V40 and possible solutions to these problems. If you have encountered other issues, please let us know in the comments below. We try our best to find an answer for you!
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