How to fix Galaxy A90 not turning on | won’t turn on or No Power issue

The Galaxy A90 is one of the best alternatives to Samsung Galaxy flagship devices. Considered a mid-range phone, it’s a top choice if you don’t want to shell out for expensive Galaxy S or Note series phones. But just like any other phone, the A90 can suffer from the same problems that affects electronic devices. In this troubleshooting article, we’ll show what to do if your Galaxy A90 is not turning on.

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How to fix Galaxy A90 not turning on | won’t turn on or No Power issue

If your Galaxy A90 is not turning on for some reason, you want to do a series of troubleshooting steps to identify the reason for it. Follow our suggestions below.

Galaxy A90 not turning on fix #1: Check for hardware damage

Majority of cases wherein an Android device stops turning on are caused by hardware issues. If your Galaxy A90 was dropped or hit by something hard before it started acting up, there may be hardware issue at hand. Keep in mind that a damaged component can’t be fixed by doing software tweaks. Stop looking for software solutions if your phone has obvious hardware damage. The least that you can do is to probably have the phone repaired. 

Galaxy A90 not turning on fix #2: Charge device

If you’re positive that there’s no hardware damage to the device, your next move is to see whether or not the battery has simply refused to charge for some reason. This happens from time to time if you allow the battery to drain all the way to 0%. Make sure to let your Galaxy A90 charge for at least 30 minutes before you attempt to power it back on. This should be enough to top the battery off. While charging, make sure not to turn your phone back on to allow charging to proceed uninterrupted.

If your Galaxy A90 happens to power back on, be sure to also recalibrate the battery and Android. Sometimes, Android may lose track of the actual battery levels. To recalibrate the operating system so that it gets accurate battery level readings, do the following:

  1. Drain the battery completely. This means using your device until it powers down by its own and the battery level reads 0%.
  2. Charge the phone until it reaches 100%. Be sure to use original charging equipment for your device and let it charge up completely. Do not unplug your device for at least two more hours and also don’t use it while charging.
  3. After the elapsed time, unplug your device.
  4. Restart the device.
  5. Use your phone until it completely runs out of power again.
  6. Repeat steps 1-5.

Galaxy A90 not turning on fix #3: Perform forced reboot

All Samsung devices with power issues can benefit from a restart. Even in this extreme case, you don’t want to skip this simple solution. Here’s what you need to do: Press and hold the Volume Down button and the Power key at the same time for 10 seconds or until the device’s screen turns on. This is how a regular restart is usually done. Should that won’t change anything, you can then try these steps:

  1. Press and hold the Volume Down button first and don’t release it.
  2. While holding it down, press and hold the Power key.
  3. Keep both keys held down for 10 seconds or more.

Galaxy A90 not turning on fix #4: Verify charging accessories are working

There may be a problem with the current set of charging cable and adapter. The USB cable that comes with Samsung devices is composed of tiny wires inside. If there’s enough of these wires that got broken, charging may not occur as there’s enough power that can be transferred to the battery. To check if that’s the case, charge your phone using a new set of cable and adapter. If you see obvious signs of physical damage to the USB cable or adapter, consider getting a new pair.

Be sure that you are using the official Samsung accessories for this troubleshooting. Sometimes, third party accessories may be of inferior quality or does not meet minimum requirements set by Samsung. This can lead to erratic charging. If you can’t readily get a new cable and adapter, visit your local Samsung store and try to charge your device using their accessories. If your Galaxy A90 charges fine, consider buying new accessories.

Galaxy A90 not turning on fix #5: Check the charging port

If your Galaxy A90 is still not turning on, you want to make sure that the charging port is the reason for it. Another common reason why a Galaxy device fails to turn on is the lack of power and that’s because there’s something in the charging that prevents it to charge. This can sometimes happen if one of the following is true:

  • There’s dirt or foreign object blocking the cable
  • There’s damage in the charging port system
  • Charging port is wet

Try to check the charging port using a magnifying tool if possible. If you see that there’s dirt, lint, or foreign object inside, that’s probably the reason why the battery has died. Once the battery has drained its power, the device no longer charges normally because something prevents it, or there may be damage to the charging port. If you think that there’s dirt inside the port, use a canned of compressed air to blow away dirt or lint. Avoid sticking anything inside in order not to damage the system.

Although the Galaxy A890 does not have water protection like the Samsung flagship phones, it’s charging port is relatively well-protected from small amount of moisture. If there’s water or liquid in the port, the phone won’t allow charging to avoid damaging the system.

Galaxy A90 not turning on fix #6: Check the screen

If your Galaxy A90 screen is not turning on, it’s possible that the problem may be screen-related. Try to see if the device still makes a sound or vibrates. If it does, there may be an issue with the screen. It may have stopped working for some reason. Again, try to check if there’s any clear indicator of broken screen like cracks or discoloration. If any of these is happening, you’ll have to let a professional take a look. The damage may be isolated to the screen so replacing it may be necessary. If you think that the screen is bad, be sure to let Samsung do the repair or replacement.

Galaxy A90 not turning on fix #7: Observe on safe mode

We’d like to think that the cause of your problem is software in nature. We don’t know exactly what happened to your phone before this issue occurred but if it coincided after you installed an app, it’s possible that you may have an app problem at hand. To check, run your phone on safe mode and see how it charges. While on safe mode, no third party apps or services will be allowed to run. So, if one of the third party apps is responsible for the issue, your A90 should charge normally on safe mode.

To boot your device to safe mode:

  1. With your A90 off, press and hold the Power key past the model name screen.
  2. When “SAMSUNG” appears on the screen, release the Power key.
  3. Immediately after releasing the Power key, press and hold the Volume down key.
  4. Continue to hold the Volume down key until the device finishes restarting.
  5. Safe mode will display in the bottom left corner of the screen.
  6. Release the Volume down key when you see Safe Mode.
  7. Check for the problem.

If your Galaxy A90 turns on to safe mode successfully, that means that a third party app is preventing it from turning back on. To identify which of your apps is causing the problem, follow the steps below:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your A90 still refuses to power back on, repeat steps 1-4.

Galaxy A90 not turning on fix #8: Boot to other modes

Another possible reason why your A90 won’t turn on may have something to do with Android Operating System. Although it’s rare, updates or system-wide changes may sometimes cause severe coding problems that may prevent Android from booting up properly. This can manifest in failing to restart, being stuck in Samsung logo screen, or failing to power back on after turning off. If the cause of the problem is an Android OS glitch, you should still be able to restart the device to other software environments like Recovery Mode or Download Mode. These boot modes are independent of Android and are used by Samsung technicians to diagnose software problems. To check if you have an Android issue, consider booting your device to any of them. If your Tablet boots to Recovery mode, you may be able to fix the problem by wiping the cache partition or doing a factory reset. In Download MOde, the only thing that you can do there is to reflash the software. If you haven’t heard of the term flashing before or if you are not confident to do it yourself, you should seek help from Samsung.

Below are the ways to boot to either Recovery Mode or Download Mode:

How to boot a Galaxy A90 to Recovery Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).

How to boot a Galaxy A90 to Download Mode

  1. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  2. Press and hold the Volume Down key and the Bixby key, then press and hold the Power key.
  3. You’ll know if you’re on Download Mode when you see a screen that says “Downloading….”
  4. Remember, if the screen works in any of these modes, that’s a clear sign that you have an Android OS issue. Be sure to factory reset the device in Recovery Mode to fix it.

Galaxy A90 not turning on fix #9: Repair

As an end user, there’s only so much that you can do. If your Galaxy A90 is still not turning on, the cause must be something deeper. You’ll have to let an expert check the hardware. Visit your local Samsung Service Center for further help.


If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem.

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