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Guide: Galaxy S9 And Galaxy S9 Plus Shuts OFF Randomly (Solution)
Many Samsung Galaxy S9 and S9 + users have reported and complained about certain firmware updates. Why are these users complaining? It’s because they’ve experienced the most annoying and frustrating thing that can happen to a smartphone: randomly shutting down for no apparent reason.
But a little bit of knowledge will go a long way and save you from shutting down your Samsung Galaxy S9 or Galaxy S9 + randomly.back to menu ↑
Possible reasons why your Galaxy S9 or S9 + shuts down randomly
The firmware update is not the only cause of your Samsung Galaxy S9 and S9 + shutting down randomly. The cause could be hardware problem, physical damage or the problem could also be caused by a battery malfunction. In principle, this problem always occurs, especially when the phone is too busy processing everything you tell your device.
However, if the random shutdown issue started after updating your Samsung Galaxy S9 and S9 + then it’s clear that the problem was caused by updating your phone’s firmware. Since there are too many questions, capabilities, and troubleshooting requests from our readers, we decided to do an extensive one guide on this particular problem with the Samsung Galaxy S9 and S9 +.
Troubleshoot your Galaxy S9 and Galaxy S9 Plus
This kind of problem is very technical so we really recommend the users to get professional help from an authorized smartphone technician. While all the pertinent information is listed below, you should still be prepared in case the situation goes from bad to worse with your phone.
However, if you are keen to troubleshoot your Samsung Galaxy S9 and S9 + by randomly turning it off, you do so at your own risk.
Below, we’ll introduce you to the four most likely causes that you can check for yourself that can help you solve the problem of your phone randomly exit.back to menu ↑
Check the Samsung Galaxy S9 or S9 + battery
One of the main reasons why a Samsung Galaxy S9 and S9 + randomly shuts down is a battery failure. The first thing to try if the battery really doesn’t work is to check if the problem still exists even if the Galaxy S9 or S9 + is connected directly to a stable power source. If your phone turns off while charging, this is probably a software or motherboard problem.
A few things to try before using it is to clean the charging port or try a different cord or wireless charger. If your phone says it’s charged but still shuts off randomly, it’s probably not the battery. Assuming it gets hot, swollen, or dies quickly, yes, you probably have a problem with the battery.
You can navigate to the settings on your device and search for battery alerts under Device maintenance. This will show you which apps are draining your battery and if there are any issues with the hardware itself.
If the battery is faulty and you have the knowledge of how to trade it out, you can order an aftermarket battery online. For best results, use your phone to an authorized repair shop. If the image below looks confusing and complicated, take it to a repair shop.
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Test third-party apps
If your smartphone freezes and shuts down randomly then this is usually caused by a faulty app. This is what practice has shown us. But do you know where to test if a third party app is really causing the problem? It turns on safe mode.
In Safe Mode, you can delete the faulty app to test if this is the reason why your Samsung Galaxy S9 and S9 + freezes and shuts down randomly.back to menu ↑
How to Get into Safe Mode:
To get into safe mode, press and hold the power button button for seconds. Then release the Power button after the “Samsung Galaxy S9 and S9 +” appeared on the screen, tap on Volume Down button. Then just wait for it phone restart then release Volume Down button once you see the text “Safe Mode” on the screen.
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Boot the Samsung Galaxy S9 and S9 + in Safe Mode
- Try to use safe mode for as long as possible so you can determine and check if it will keep turning off unexpectedly
- If it phone works normally in safe mode, a third party app is causing the problem. Delete the problem-causing app and your phone should work fine
- Try uninstalling all startup programs and utility apps first (such as flashlights, caller ID, calculators, etc.), or the ones you downloaded last
- If you can’t determine which app is responsible for the problem, back up all data first then reset your Samsung Galaxy S9 and S9 + (you may not want to restore all applications)
- If the Samsung Galaxy S9 and S9 + keeps shutting down randomly even when you’re already in safe mode, then it’s clear that a third-party app isn’t the cause of the problem. Only a few built-in apps and services only work in safe mode so if the problem still exists then there is another problem.
The next step may be to reset your Samsung Galaxy S9 and S9 +.back to menu ↑
Follow the below:
- First, exit safe mode
- Go back to your Samsung Galaxy S9 and S9 + home screen
- Tap the apps
- Go to the Settings app
- Tap Back-up and reset
- Then choose Factory Data Reset
- Click on Reset device from the options
- Enter your PIN or password if necessary. This can usually be seen up for those who like to have an active lock screen feature on their Galaxy S9
- Tap Continue button to confirm
- Then select Delete all
- Check the system cache
If you think everything started after doing a firmware update, checking the cache system probably isn’t the culprit. But in most cases, the main reason why most Samsung devices encounter this kind of problem is due to corrupted caches. We therefore recommend that you verify the cache situation in addition to the other factors mentioned above.back to menu ↑
Delete your Samsung Galaxy S9 and S9 + system cache
If you decide to delete the system cache to try and fix the problem, boot the Samsung Galaxy S9 and S9 + in recovery mode first. We assure you that this process is completely safe, meaning you don’t run the risk of losing your files. To know how to delete system cache on Samsung Galaxy S9 and S9 +, follow the instructions below:
- Turn off your Samsung Galaxy S9 and S9 +
- Keep the Home, Power and volume Up buttons simultaneously
- As soon as you see the Samsung Galaxy S9 and S9 + on the screen, release the Power button
- And once you see the Android logo, release the other two buttons
- Wait a minute for you to start navigating the recovery mode
- Select and highlight the Wipe Cache Partition with the volume keys
- Then choose it using the Power button
- Just use the same buttons to highlight an option, select “Yes” on the next screen option
- Wait for the cache partition wipe to complete
- Then use the two buttons again to select “Reboot system now”
- Wait for the reboot process to complete (this usually takes longer than usual)
- Ultimate solution of all time: Master Reset
Factory reset for your Samsung Galaxy S9 and S9 +
If even the wipe cache partition hasn’t prevented your Galaxy S9 or S9 + or Galaxy S9 or S9 + Plus from shutting down randomly, it looks like you need to do a master reset. Back up all your files from internal storage. This is just to make sure you don’t lose any important data when you start deleting everything. Afterwards:
- Turn off the Samsung Galaxy S9 and S9 +
- Enter recovery mode again
- While holding the two buttons, also press the power key (this is when the command is taken into account. Don’t worry about holding the other two keys down for too long)
- Once the text “Samsung Galaxy S9 and S9 +” appears up on the screen, release the Power button
- When you see the Android logo on the screen, release the other two buttons. You should also be able to see the Installing System Update message. In that case you will have to wait a little longer until the logo becomes visible up on the display
- After successfully entering recovery mode, use the Volume Down key to select Wipe data / Factory data reset
- Then use the power key again to confirm button
- Use the volume down key to highlight the option asking you to confirm this action: “Yes – delete all user data”
- Use the power key to start resetting the Samsung Galaxy S9 and S9 +
- After the reset is complete, highlight Reboot system now
- Then select it with the Power button and wait for the Samsung Galaxy S9 and S9 + to reboot
After trying the above methods, your Samsung Galaxy S9 and S9 + should now work normally. This is all you can try if your device freezes and shuts down randomly. If something above didn’t work and fixed the problem, it’s time to take it to an authorized service. Have it checked by a technician. They have all the tools needed to troubleshoot and check issues with your Samsung Galaxy S9 and S9 +.back to menu ↑
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