Samsung Galaxy S9 and Galaxy S9 Plus Stuck on Logo & Keeps Rebooting After Update

Every now and then Samsung releases firmware updates for the Samsung Galaxy S9 and Galaxy S9 Plus. Software updates are known to fix bugs from the previous firmware. In some cases though, they manage to create more issues. Many Galaxy S9 and S9 Plus owners have noticed this and are complaining about firmware-related problems.

An example of these issues is the smartphone remaining stuck on the logo screen during the startup process. Some report completing the update with no problems but later on they face more problems such as the smartphone randomly rebooting without warning, regardless of what the owner is doing.

If you have been experiencing these firmware-related problems, then this article is perfect for you. This article will go over troubleshooting methods made up of three steps. Hopefully, these three steps will solve all your issues and will let you use your Galaxy S9 or Galaxy S9 Plus without any drawbacks.

As we said before, the problem starts during the software update. All previous updates might have gone smoothly but one in particular disrupts everything. What happens is that your device never leaves the rebooting process. It remains stuck in the logo screen without ever completing it and proceeding to the home screen.

This will not go away on its own. The most common cause for this issue is a corrupt cache or data. The solution for this is pretty easy. All you have to do is read the guidelines below.

Wipe Cache Partition on Galaxy S9 and Galaxy S9 Plus

It might be your system’s current cache gets corrupted while you are updating your firmware. Another possibility might be that the new firmware does not support the old cache. In both cases, your Galaxy S9 or Galaxy S9 Plus will not react well and it will result in bad performance or in your case, getting stuck during the bootup.

Wiping the cache is something that you are advised to do consistently anyways, as a precaution. It makes sense that this should be the first thing you try when your smartphone gets stuck in the logo screen.

To Wipe Cache Partition

Turn off the your Samsung Galaxy S9 or Galaxy S9 Plus
Hold the home button and the volume up key at the same time
While still holding these buttons, hold the power button as well
Let go of the power button as soon as you see the “Samsung Galaxy S9” or “Galaxy S9 Plus” text appear on the screen
Let go of the home button and volume up key when the Android logo pops up on the screen
Wait for around 1 minute and then proceed to look through Recovery Mode
Choose the Wipe Cache Partition option by using the volume down key to scroll through the options
Initiate Wipe Cache Partition by pressing the power button
Choose Yes with the volume down key and then confirm by pressing the power button
Wait for a while the cache is being wiped
Highlight the Reboot System Now option with the volume down key
Start the reboot with the power key. This might take a bit longer than usual, but wait until it is done

If for some reason this did not solve your problem, you will want to try the next solution. Your last resort will be to perform a system reset but you want to avoid that as much as possible because you will lose all of your stored data and information.

Boot Galaxy S9 or Galaxy S9 Plus into Safe Mode

This method could solve your problems if the cause is a third-party application. Sometimes a certain application could be incompatible with the new software. To make sure that this is not the case, you can go into Safe Mode by following the steps listed below.

To Enter Recovery Mode

Hold the power button
Let go of the power button when the “Galaxy S9” or “Galaxy S9 Plus” text appears on the screen
Hold the volume down key
Let go of the volume down key when the Safe Mode text appears on the screen

If going into Safe Mode solved your issues then luckily, you will not have to proceed with the third method. However, you should make a backup of any important data and settings in case you none of the previous methods have worked for you.

For some users, uninstalling certain third-party apps solved everything. Some also report their smartphone working perfectly fine after rebooting in Safe Mode. If you are none of these, then continue reading.

Perform Master Reset from Recovery Mode on Galaxy S9 and Galaxy S9 Plus

This method is the most extreme method because it will delete all of the data and content of your Samsung Galaxy S9 or Galaxy S9 Plus. Your smartphone will default to its original factory settings, but it will also have the latest firmware.

Aside from losing all of your information, this method will also wipe your cache partition and any previous settings and preferences. If you were successful in accessing Safe Mode in the prior step, then you will have been able to make a backup which will help you restore all of your files and settings. Hopefully, this reset will fix all of your issues.

To Enter Recovery Mode and Initiate Master Reset

Turn off your Galaxy S9 or Galaxy S9 Plus
Hold the home button and volume key at the same time. Then follow up by pressing the power button. The power button is crucial so it does not matter how long you press the other two buttons, as long as you hold the power button
Let go of the power button when “Samsung Galaxy S9” or “Samsung Galaxy S9 Plus” appears on the screen
Keep holding the other two buttons until you see “Installing System Update” on the screen
Let go of the buttons when you the Android System Recovery Menu pops up on the screen
After waiting for around 30 to 60 seconds, use the volume down key to looking through the options
Make sure to highlight Wipe Data or Factory Reset and choose it by pressing the power button
Make sure to highlight Yes – Delete all user data and choose it by pressing the power button
Once the device has completed the Master Reset, highlight Reboot System Now and choose it by pressing the power button

After the last step, all you need to do is wait. It will take a bit longer than usual. But if everything works out, the configuration screen will appear and you will be prompted to enter all your details, much like the first time you used your smartphone.

However, there is still a chance for your smartphone to still be stuck during the bootup. This means that the software update failed. The only thing you can do in this case is to reinstall the firmware. We advise that you seek technical support from a Samsung expert or technician as he or she will be more equipped in handling the issue.