As a part of the simple and intuitive design strategy that the Samsung Galaxy Note 8 and Note 9 enjoys, the device isn’t equipped with too many hard keys. But the ones it has are essential and, as you’ve probably guessed, we are talking about the power button not working. When this happens, and the buttons light up but the display doesn’t turn on, you need to do something about it quite fast.
It goes without saying that, as long as the device cannot be unlocked, it cannot be used. But we should also mention that not even a call in progress will wake up the screen. This means that, if you happen to receive a call, you will not be able to see who’s trying to reach out and you won’t be able to answer the call. Long story short, the screen stays black and doesn’t respond in any way, no matter what you do.
How to troubleshoot the Samsung Galaxy Note 8 and Note 9 power button not working
There are a couple of different causes to suspect. One of them is a hardware problem with the screen or with the Power button itself. Obviously, if that’s the case, you cannot personally do anything about it, and you will have to ask for technical support.
On the other hand, you might also be dealing with a malfunctioning app. You will have to boot into Safe Mode and see what happens. If the problem is gone in that mode, you can suspect a third-party app that needs to be uninstalled. If not even the Safe Mode is making any difference, try to bring it back to the initial factory setting.
When you’ve done that, also make sure that you make a software update. One of these options should fix the Samsung Galaxy Note 8 and Note 9 power button not working.