No matter how much robust or versatile your current smartphone is, there will come a time when it will just not be able to power on. The Samsung Galaxy S9 and its bigger brother, the Galaxy S9 Plus are certainly no exception to this since like all electronic devices and tools, they are subject to wear and tear. The phone models are still relatively new, though that does not mean that wearing it down is impossible, depending on how careful you are with the device.
It can’t be helped though, since smartphones will always reach a point where they become obsolete by either breaking down or getting replaced by a successor. It happens to everyone eventually, though it usually does not happen for a very long time. There are some unfortunate owners who have only had their Samsung Galaxy S9s or Galaxy S9 Pluses but are already experiencing a problem where their phones suddenly will not turn on.
This is also the case with its preceding models, the Samsung Galaxy S8 and Galaxy S8 Plus which were no stranger to the issue. This can be quite frustrating and users are left feeling betrayed by a company as ubiquitous as Samsung. The issue is also quite not straightforward as switching the phone on makes the keys and the LED light up but no display is showed.
There could be a lot of causes to this to add to the owners’ frustration, to the point where a lot of us even start deciding to get a refund or switch to another brand. However, a few preliminary steps and procedures can still be done in order to attempt a fix yourself instead of rushing to the nearest retailer or service center. Save yourself the trip and some of the red tape and try these instructions first, they are quite simple and may take only a few minutes of your time.
How to Fix Samsung Galaxy S9 or Galaxy S9 Plus Not Turning On:
Test the Power Outlets and Charger
The first and most efficient way to fix a smartphone or electronic problem yourself is always to troubleshoot and isolate the issue. This also works as a way to determine whether it is really your phone or something else which may be causing the problem. This can be device peripherals, accessories, or even your power outlets, to do this, you must:
- Prepare at least two Android smartphone chargers, preferably both Samsung but any other brand is fine as long as they are not knock-offs
- Also prepare at least two power outlets
- Lastly, have another Android smartphone at the ready
- Plus your other charger into your problem smartphone and plug it into one outlet then
- Check to see if the display will turn on
- If not, then try changing outlets
- If it still does not turn on test your other working phone in the same charger
- Also test that other working phone with the original Samsung charger
- If the other phone works and is charging, with both power outlets and both chargers, then it is most definitely your Samsung phone which has a problem
Move on to the next step if this does not resolve the issue.
Test the Power Button
Sometimes the problem could lie in the power button, hence the display could not turn on or the phone itself would not power on. This is one of the most obvious preliminary steps to take before moving on to the next solution, so it is advised that users perform this first or after testing out the chargers and power outlets.
To do some inspection with the Power button, simply press the key in intervals and see if you get a response from the smartphone’s display. Also check if there is some sort of physical damage in the Power button itself such as cracks, looseness, or stiffness which may be the cause of the problem. Simply get a general feel of the Power button, it should be easy to feel if sometime is amiss with the feedback of your presses.
If there seems to be nothing wrong with the Power button, move on to the next step.
Try the Safe Mode
We’re now moving on to more advanced steps, and this one involves what is called the Safe Mode. It is a bare bones mode for the smartphone which loads only the essentials for the device, disregarding any user adjustments and improvements you may have done do it over time. This means all the apps you installed will not be available in this mode.
This is necessary to check if something you might have installed could be causing your phone or its display not to turn on, as some apps, especially obscure ones, tend to have poor support or optimization which can interfere with the device’s operation. In order to do this step you must:
- Hold the device with both hands
- Press and hold the Power button
- Press and hold the Volume Down key while still holding the Power button
- Wait for the display to initialize, this should not take more than a minute
- If it does not, then move on to the next step
- If it does, then you should be able to see the device boot up
- Release the two keys you are holding once you see the screen with the text “Safe Mode” at the bottom
- If your phone runs in Safe Mode with a display, then there is a big chance that it was an installed app or copied data which caused your phone to not turn on
- Then you will have to recall which apps you have installed recently and remove them one by one
- Simply remove any app you have installed after the a few hours before the issue started happening
Should this solution work, and you were able to pinpoint exactly which app or stored data was causing the problem, avoid that app or data and prevent it from ever entering your phone’s storage again. Otherwise, continue below for more advanced fixes for your phone.
Try the Recovery Mode and Wipe Cache Partition
This step is the most advanced and is also quite drastic, though it should not be too harmful if you do not deviate from the instructions. It should also be noted that this is the final step before you take your Samsung Galaxy S9 or Galaxy S9 Plus to for some technical help as there are not other safe steps to take that you can do by yourself to repair your phone.
This one involves clearing your device’s data cache which can only be accessed through a Recovery mode, which is usually not made available to the layman since it is quite a powerful mode which can make or break the phone. The steps are quite similar to the Safe Mode boot but needs more care since you can easily alter something unwarranted in the said mode.
In order to access the Recovery mode first, you have to;
- Hold the phone with both hands
- Press and hold the Power, Volume Up, and Home/Bixby button all at the same time
- Continue holding all three buttons and wait until the phone vibrates, after which you must release the Power button
- This should initiate the boot up sequence to Recovery mode, keep holding Home and Volume Up throughout the process
- Once the Android Recovery mode screen appears, you should then release both buttons
- Be careful not to press anything unnecessary while in Recovery mode
- You can navigate the menu using the Volume Up and Down keys to go up and down correspondingly
- For now just keep pressing Volume Down until you have selected Wipe Cache Partition
- Confirm this selection by pressing the Power button
- This will initiate the cache clearing sequence for your phone, wait for it to finish
- Once it is done, simply Power Off the device and restart it manually and normally
- It should now be able to turn one regularly and with a display
One reason for this step is that over time, some cached files and data tend to become corrupted in the device, leading to a lot of problems which may or may not cause the phone not turning on. Wipe Cache Partition clears up the faulty data stored within your phone and makes a clean cache again, possibly fixing your phone’s software issues.
To further understand how to clear your phone’s cache partitions see the tips and tricks on how to clear cache on the Galaxy S8. This can help you become more knowledgeable about the process.
If by some chance, the device still won’t turn on or turns on but has no display, then it may be time for some technical help as the issue may be purely hardware and cannot be fixed by software solutions. Any further attempt to fix it by yourself may go to waste if all the above steps do not work.
Try the Technician
You should then go the the retailer from where you bought the phone or try an authorized service center for repairs. Technicians may know better and try to give you some advice or fix the issue themselves, if by some chance they are also unable to fix it, then a replacement should then be available, assuming you still have warranty and depending on the store policy.
It is also advised to avoid trying any obscure or “magic” fixes for your Samsung Galaxy S9 or Galaxy S9 Plus that won’t turn on if the above directions do not work. This is because you might actually end up making the problems worse. In addition to that, avoid tinkering with the phone’s hardware too. This can lead to voiding your warranty for the phone.
This issue usually doesn’t happen to a newly bought S9 S9 Plus. However, it is good to know how to solve issues like this by yourself. Sometime you might need to actually do it. Just remember to take advantage of your warranty if it proves to be a defect or faulty product.
Just make it clear to them that you didn’t have anything to do with the problem. Tell them it just happened. Some policies don’t cover accidental physical damage or some third party software installations.