How to fix Galaxy A90 running slow | fix slow performance

Trying to figure out what’s causing your Galaxy A90 running slow? You’re in luck as this troubleshooting article will help you with this issue.

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How to fix Galaxy A90 running slow | fix slow performance

If you noticed that your Galaxy A90 has been running slow lately, there may be a reason for that. Follow this guide to know how to deal with the problem.

Galaxy A90 running slow fix #1: Perform soft reset

Whether you’re dealing with a simple issue or a more complicated one, one of the basic things that must be done is a system restart. In your case, your Galaxy A90 may have simply encountered a minor bug that causes it to run slower than expected. Even the most powerful phones can bog down for so many reasons. To see if the cause of your issue is fixable by refreshing the system, try to restart first. This is one of the basic troubleshooting steps that you need to do when troubleshooting any Android issue. It’s simple and often effective in dealing with minor bugs and fixes. In most instances, performance troubles are temporary and caused by an app or software bug. Make sure to perform this troubleshooting step in this case. Here’s how: press and hold the Volume Down button and the Power key at the same time for 10 seconds.

If doing the regular restart won’t help, then try this:

  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.
  4. The second restart procedure tries to simulate the effects of removing the battery pack. On older devices, disconnecting the battery is often an effective way in fixing unresponsive devices. Hopefully, your wifi troubles will get fixed by this procedure. If nothing changed though, proceed to the next suggestions.

Galaxy A90 running slow fix #2: Check for overheating

If you noticed that your Galaxy A90 has been running slow and getting uncomfortably warm at the same time, it may be overheating. Overheating is just one of the signs of a deeper problem. This problem can be hardware or software in origin. If the phone is hot to the touch and you can’t use it normally, let it cool off for at least 30 minutes. An overheating device may slow down and eventually shuts down by itself to avoid damage. You don’t need to wait for it to shut down automatically though. You can intervene at this point to see if that will make a difference. If your Galaxy A90 keeps slowing down and overheating afterwards, you can skip the rest of the troubleshooting steps below and go directly to factory reset. This will help you figure out whether or not it’s a software issue. If factory reset will fix the problem, then it’s an app or software problem. However, if nothing changes after a factory reset, there’s more likely a hardware trouble at hand. In this case, you want to send the device in for repair or replacement.

Galaxy A90 running slow fix #3: Close apps

The next troubleshooting step that you can do is to check for any sign of a possible app issue. You can do that by going under Settings > Device care > Battery. If there’s an app that is using power abnormally high in the list that you don’t often use or recognize, it may be a rogue app.  Try to close that app and see if will also fix the slow performance problem.

Below are the ways to close an app:

  1. On your screen, tap the Recent Apps soft key (the one with three vertical lines on the left of the Home button).
  2. Once the Recent Apps screen is shown, swipe left or right to look for the Instagram app. It should be here if you managed to run it previously. Then, swipe up on the app to close it. This should force close it. If it’s not there, simply tap the Close All app to also restart all apps.

Another way to force close an app is this:

  1. Open Settings app.
  2. Tap Apps.
  3. Tap the More settings icon (three-dot icon, upper right).
  4. Tap Show system apps.
  5. Find and tap the appropriate app.
  6. Tap Force Stop.

You can also try to force the app to “sleep” under Battery Usage settings if you want. If on sleep status, that app can no longer run in the background without your knowledge. To put an app to sleep:

  1. Open Settings app.
  2. Tap Device care.
  3. Tap Battery.
  4. Tap More settings at the upper right (three dots).
  5. Tap Settings.
  6. Tap Sleeping apps.
  7. Tap Add below.
  8. Select the offending app.
  9. Tap Add.

Galaxy A90 running slow fix #4: Check RAM usage

In the same vein as the previous troubleshooting step, you can also try to check which of your apps is using RAM or memory. On paper, Android is supposed to be good at managing RAM and user intervention should not be needed. However, in reality, that does not happen all the time and some apps may hog too much memory all the time so as to cause a system to bog down. Any app that uses RAM too much all the time be the reason for the problem. Keep in mind though that RAM usage in every system differs. There’s no particular guide that you can check how much an app in a device uses memory. For some apps, using a lot of RAM maybe normal. Games or video editing apps are most likely to hog memory as they use a lot of resources to process everything. However, such apps should release memory if you close them or if you’re not actively using them at all. 

Keep in mind though that when it comes to memory, the more RAM is being used, the better. In general, unused RAM is wasted memory so don’t worry about your device’s RAM almost running out. It’s just Android managing memory. Your Galaxy A90 has a lot of memory to allocate for apps but there may be a problem if RAM runs out and slow performance issue occurs. This means that the system is unable to determine which processes and apps to allocate memory to. 

To check if your have memory issue:

  1. Open Settings app.
  2. Tap Device care.
  3. Tap Memory.
  4. Tap Clean now.

Galaxy A90 running slow fix #5: Delete apps

If you are the type who tends to hoard apps then forget about them, it’s possible that the cause of your problem is the presence of too many unused apps. Sure, your Galaxy A90 has tons of storage space but unused apps not only takes space, they can also compromise the device or cause it to run slower. If you have apps that you haven’t used for at least 2 weeks, they are probably not that important to you so try to uninstall them. If you’ll need them again, simply install them in the future. For now, focus on cleaning up the system by getting rid of unnecessary apps. 

Galaxy A90 running slow fix #6: Check for rogue apps

If your Galaxy A90 is still running slow at this time, you can check further if one of the apps is to blame by restarting to safe mode. Safe Mode is a software environment used by Samsung technicians to diagnose app problems. You can use this tool to check if a third party app interferes with Android. Only pre-installed apps will be allowed to run on safe mode so if Galaxy A90 works normally on safe mode, that’s an indication of bad app problem.

Here are the steps to reboot your phone to safe mode:

  1. Press and hold the Power button until the Power off window appears then release.
  2. Touch and hold Power off until the Safe mode prompt appears then release.
  3. To confirm, tap Safe mode.
  4. The process may take up to 30 seconds to complete.
  5. Upon reboot, “Safe mode” appears in the lower-left of the home screen.
  6. Observe the phone for a few hours to see if there’s a difference.

Remember that third-party applications are disabled in this mode so what you can use are pre-installed apps. If the phone works on safe mode, that means that the problem is due to a bad app. Uninstall the app you recently installed and see if that will fix it. If the problem remains, use the process of elimination to identify the rogue app. Here’s how:

  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 Galaxy A90 is still problematic, repeat steps 1-4.

Galaxy A90 running slow fix #7: Refresh system cache

If the phone started running slow after a new system update, there might be a problem with the system cache. Try to clear the cache partition to see if there’s a change in performance:

  1. Turn off the device.
  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).
  4. Press the Volume down key several times to highlight ‘wipe cache partition’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘yes’ is highlighted and press the Power button.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Galaxy A90 running slow fix #8: Factory reset

The final troubleshooting step that you can perform in this situation is factory reset. Since the most likely reason for the problem is software in nature, factory reset will most probably help. Be sure to create a backup of your personal data such as photos, videos, documents, etc. before you do it. Below are the two ways to factory reset your Galaxy A90.

Method 1: How to hard reset on Samsung Galaxy A90 via Settings Menu

This is the easiest way to wipe your Galaxy A90. all you have to do is to go under Settings menu and follow the steps below. We recommend this method if you have no trouble going under Settings.

  1. Create a backup of your personal data and remove your Google account.
  2. Open Settings app.
  3. Scroll to and tap General management.
  4. Tap Reset.
  5. Select Factory data reset from the given options.
  6. Read the information then tap Reset to continue.
  7. Tap Delete All to confirm action.

Method 2: How to hard reset on Samsung Galaxy A90 using hardware buttons

If your case is that the phone is not booting up, or it boots but Settings menu is inaccessible, this method can be helpful. First, you need to boot the device to Recovery Mode. Once you successfully access Recovery, that’s the time that you begin proper master reset procedure. It may take some tries for you before you can access Recovery so be patient and simply try again.

  1. If possible, create a backup of your personal data ahead of time. If your problem prevents you from doing that, then simply skip this step.
  2. Also, you want to make sure that you remove your Google account. If your problem prevents you from doing that, then simply skip this step.
  3. 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.
  4. Press and hold the Volume Up button and the Bixby button at the same time.
  5. While still holding the Volume Up and Bixby keys, press and hold the Power button.
  6. The Recovery screen menu will now appear. When you see this, release the buttons.
  7. Use the Volume Down button until you are highlighting ‘Wipe data/factory reset.’
  8. Press the Power button to select ‘Wipe data/factory reset.’
  9. Use Volume Down to highlight Yes.
  10. Press the Power button to confirm factory reset.

Galaxy A90 running slow fix #9: Get help from Samsung

Remember, there’s only so much that you can do as an end user. If factory reset won’t help at all, that means that the reason for the problem is likely something deeper. There must be a hardware malfunction behind it. Make sure that you let Samsung take a look so they can determine whether or not the phone can be repaired, or if it requires replacement.


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