Problem # 1: Galaxy S9 and S9 Plus Screen brightness auto dim issue and its solution
Some Galaxy S9 and S9 Plus users have reported that when unlocking the device at night or in a dark environment, the screen turns black automatically even if settings such as Auto-Brightness and Blue Light mode (Night mode) are disabled.
- This issue appears to be for users who were restoring settings and apps from a previous device that had night mode enabled. Unfortunately, the only way to fix this problem for now is to perform a Factory Reset (you can find instructions on how to do this). During the setup process, be sure to uncheck “Restore system settings”. You can restore your apps as you did before.
Galaxy S9 and S9 Plus Display has a yellow tint
Several users reported seeing a yellow tint on the screen.
- You can try changing the color balance, going to Settings> Display> Color Mode and manually adjusting the RGB spectrum until the screen looks better.
- If this doesn’t work and the problem persists, the only option might be getting a new one instead.
Galaxy S9 and S9 Plus Screen dead zone
One of the Galaxy S9 and Galaxy S9 issues discussed so far was the screen dead zone that some users found. The entire screen looks unresponsive.
- First check if there is a dead zone on the screen. Open the dialer and search * # 0 * # to launch the hardware diagnostics page. Turn on the Tap option. Now slide your finger across all parts of the screen to check that a zone is not responding. If so, this makes you fit for Samsung’s replacement.
- When there is no dead zone, the issue may be with touch sensitivity, especially if you have a screen protector. Go to the settings menu and open Advanced Features. Scroll down, find Touch Sensitivity and enable it.
Problem # 2 – Galaxy S9 and S9 Plus Keyboard not working issue and its solution
Some users found that the keyboard did not turn on as expected when trying to enter the PIN or password to unlock the phone.
- Many assume this could be due to the dead zone problem mentioned above. The solution is actually much simpler and basically involves enabling a setting that should be enabled by default.
- Go to Settings> Applications and open the Advanced Settings menu by tapping the three vertical dots in the upper right corner. Tap on Show System Settings and scroll down to Samsung Keyboard. Scroll down to Advanced Settings and allow for “apps that can appear on top”. This should fix the problem. The permission should be allowed by default, but may not be the case.
- This permission is required even if you are installing a third-party keyboard.
Problem # 3 – Video lag issue and solution when recording video on Galaxy S9 and S9 Plus 4K
Many users encountered dropped frames and experienced lag while recording video in 4K. The dropped frames are also shown in the video playback.
- This stutter may be caused by a slow microSD card. Make sure the microSD card you have allows a minimum write speed of 30 MBps to ensure the recording quality is not compromised.
- Some users found that disabling electronic image stabilization (EIS) fixed the issue. Go to the camera app and open the Settings menu where you can disable EIS. You must also enable HEVC (High Efficiency Video Coding).
- Since Galaxy S9 and Galaxy S9 Plus optical image stabilization (OIS), disabling EIS shouldn’t have too much negative impact. That said, we hope a software fix should be in an upcoming update.
Problem # 4 – Galaxy S9 and S9 Plus Notification LED not working as expected issue and solution
Many users found that the notification light did not work as expected. Apps like Whatsapp let you choose unique colors for private and group messages, the LED does not reflect this setting. In some cases, the notification LEDs show a standard color regardless of whether you set different colors for individual applications. This seems to be one of the most common Galaxy S9 and Galaxy S9 Plus problems faced by users.
- In the case of Whatsapp, go to Settings> Applications and go to Whatsapp . Tap on Clear Cache in the Memory section. Then launch Whatsapp, open the settings menu and set the LED color to None. Finally, go to Settings (phone settings)> Display , disable the LED indicator and enable it again. Go back to Whatsapp and adjust the LED color to whatever you want; everything should work as expected.
- As far as other apps are concerned, you may need to use a third party app like Light Flow until a permanent fix from Samsung comes along. The Pro version of the app can be found here, but some users said Light Flow Legacy works better with Samsung devices. You can find this version of the application here.
Problem # 5 – Galaxy S9 and S9 Plus Edge lighting not working as expected issue and its solution
Many users have encountered various problems with edge lighting. For some, it doesn’t work when the screen is off. For others, Edge lighting just seems to work for the stock SMS app and nothing else.
- Some users have also found that enabling “pop-up notifications” for apps like Whatsapp and Snapchat causes Edge lighting to work when the screen is off.
- For some, the problem seems to be that they turned off the Animation Time Scale in the Developer Options section in the Settings menu, which was made to improve performance. All you have to do is set this to 0.5x and Edge lighting works.
- You can try downloading the Edge Lighting app from Google Play Store here. This app allows you to set customized colors for different applications and makes the edge lighting feature work even when the screen is off. However, the results are mixed. The app worked perfectly for some users. Others also have problems. Since this is a paid app, it is something to keep in mind before deciding to download it.
Problem # 6 – Galaxy S9 and S9 Plus Call recording not working issue and its solution
Users have found that call recording is no longer working, with only one side of the conversation being recorded. This happens regardless of which call recording app you use. This issue only affects the version of phones powered by the Samsung Exynos processor, not with the Qualcomm Snapdragon 845.
Unfortunately, there is no solution or workaround for this. Call recording is blocked on Galaxy S9 and Galaxy S9 Plus in most markets to comply with Google’s security policies and local laws. Some app developers have come up with a solution that allows one side of the search to be recorded, but this will be possible. Users who depend on call recording may find this to be one of the biggest Galaxy S9 and Galaxy S9 Plus issues around.
Samsung has begun launching local call recording in Israel, Finland, Russia and some markets where call recording is legal in some. In other markets, you can try using SKVALEX’s Call Recorder app, which now appears to support Galaxy S9 and Galaxy S9 Plus. The app has a trial version, so you can check if it works for you before purchasing the full version.
Problem 7 – Galaxy S9 and S9 Plus Connection issues and solutions
Wi-Fi and Bluetooth issues usually occur when you turn on a new smartphone, and Galaxy S9 and Galaxy S9 Plus also have connectivity issues.
- Turn off the device and router for at least ten seconds, then turn them back on and try the connection again.
- Go to Power saver> Settings and make sure that this option is turned off.
- Use the Wi-Fi Analyzer to check how crowded your channel is and upgrade to a better option.
- Forget the Wi-Fi connection by going to Settings> Wi-Fi, long tapping the connection you want, then selecting “Forget” . Re-enter the details and try again.
- Make sure the router firmware is up to date.
- Make sure that the applications and software on the device are up to date.
- Go to Wi-Fi> Settings> Advanced router MAC filter after making sure access is allowed and make note of your device MAC address.
- Some users found that disabling the Hotspot 2.0 feature fixed many problems with Wi-Fi.
- See the manufacturer’s manual for the device and vehicle and reset your connections.
- Make sure that no vital part of the connection process is missing.
- Go to Settings> Bluetooth and ensure nothing needs changing
- Go to Settings> Bluetooth and try to delete all previous pairings and set up again from scratch.
Problem # 8 – Galaxy S9 and S9 Plus Calls are automatically rejected issue and its solution
Some users found that their received calls were automatically rejected, with a rejected call message sent (“Sorry, can’t speak right now. Call again later.”). While the main issue is obviously call rejection, users with limited or limited messaging plans also cause concern.
- For some users, disabling Easy Quiet seems to do the trick. Go to Settings> Advanced Features and disable it. If you find the setting already off, turn it on and then turn it off again.
- For the most part, this issue seems to be related to Edge Lighting. Go to Settings> Display> Edge Screen> Edge Lighting , tap on three vertical dots in the top right corner and open Quick Reply. You can turn this feature off until a more permanent fixation is made. The ability to disable the setting has been released in a recent update. If you don’t see this option yet, the only workaround for this problem is to disable Edge Lighting completely.
Problem # 9 – Static or crackling noise issue caused by Galaxy S9 and S9 Plus Speaker and its solution
Some users are facing an issue with their device’s speaker. Users hear static or cracking noise while watching videos, listening to music or playing games.
- You can first check and confirm that the problem isn’t hardware related. Dial * # 0 * # to open the hardware test menu. Search for “Loudspeaker” and run the test. If this is a hardware issue, you’re the only option to get a replacement. If the specified code doesn’t work, you can also try calling * # 7353 #.
- Some users noticed that the problem is related to the Dolby Atmos feature, and turning it off cleared the static noise. Go to Settings> Sound and vibration> Sound quality and effects . Disable the Dolby Atmos setting and see if the issue is resolved.
Problem # 10 – Galaxy S9 and S9 Plus problems where the only option to wait for software update
There are some Galaxy S9 and Galaxy S9 Plus problems for which no solutions have yet been found, and the only option for now is to wait for an official software fix from Samsung or the app’s creator.
- Notification volume too low: Many users found that the notification alert sound was extremely low. This is probably a software issue and hopefully will be fixed in a future update.
- Call dropouts: One of the biggest Galaxy S9 and Galaxy S9 Plus problems apparently to be seen is about looking for drops or silent patches during a call. Quite a few users have encountered this problem and it doesn’t appear as a problem with the SIM card or cellular network connection. Samsung has also added search stability improvements with the last few updates. While things have improved for some users with each update, it hasn’t completely disappeared yet.
- NFC issues: Some users have discovered that NFC turns off automatically and cannot be reactivated when the device battery is below 70%.