How to fix your Samsung Galaxy A20 that’s running so slow

Performance issues can always be attributed to firmware problems and that seems to be the case with some Samsung Galaxy A20 that, according to their owners, started running so slow. The phone has some pretty decent hardware specs and you can always count on it to run fast and smooth. However, it’s not perfect and at some point, you would be able to encounter a hiccup or two. 

So, in this post, I will walk you through in troubleshooting your Samsung Galaxy A20 that started running so slow. We will try to look into each possibility and rule them out one after another until we can determine what the issue is and hopefully be able to fix it. If you’re one of the owners of this phone and are experiencing similar symptoms, then continue reading as this troubleshooting guide may be able to help you somehow. 


Before we proceed, if you’re looking for a solution to a problem with your phone, try to browse through our Galaxy A20 Help Guides page to see if we support your device. If your phone is in the list of our supported devices, then go to the troubleshooting page and look for similar problems. Feel free to use our solutions and workarounds.

Troubleshooting Galaxy A20 that started running so slow

When troubleshooting a smartphone that has a performance-related issue, you have to be very thorough. The last thing you need is to lose some of your important files and data, so we’ll take this problem one solution at a time. That said, here’s what you need to do: 

First solution: Run your phone in Safe Mode

This will isolate the problem immediately and you would know if the issue is caused by a third-party app or not. By running your phone in safe mode, you’re temporarily disabling all downloaded applications and your phone is expected to run smoothly, provided that the cause of the problem is a third-party app or two. Here’s how you restart your phone in safe mode: 

  1. Press and hold the Power key until options show. 
  2. Tap and hold the Power off option until it changes into Safe Mode. 
  3. Tap the Safe mode icon to restart your device.
  4. Once the reboot is successful, you should see ‘Safe mode’ at the lower-left corner of the screen. 

If the problem doesn’t occur while your Galaxy A20 is in this mode, then it confirms our suspicion that one of the third-party apps or some of them is causing the problem. This is what you have to do next: 

  1. Restart your phone normal to boot into standard mode. 
  2. Remember the apps you installed about the time when the phone starts to run so slow.
  3. Once you already have an app in mind, swipe down from the top of the screen to pull the notification panel down. 
  4. Tap the Settings icon on the upper-right corner. 
  5. Scroll to and then tap Apps. 
  6. Find and tap suspected app. 
  7. Tap Storage. 
  8. Touch Clear data and tap OK to confirm.
  9. Tap the back key once and then touch Uninstall. 
  10. Confirm that you want to remove the app from your phone. 

On the other hand, if your Galaxy A20 is still running so slow even in safe mode, then move on to the next solution. 

ALSO READ: Galaxy A20 stuck on the Samsung logo and won’t boot up. Here’s the fix.

Second solution: Reset all settings on your device

When your phone is still running so slow even in safe mode, the problem could already be with the firmware, although it’s also possible that some settings triggered the problem. Therefore, the next thing you have to do is to bring all settings back to their factory defaults. Don’t worry, none of your files or data will be deleted if you did this. Here’s how: 

  1. Swipe down from the top of the screen to pull the notification panel down. 
  2. Tap the Settings icon on the upper-right corner. 
  3. Scroll to and tap General management. 
  4. Touch Reset. 
  5. Tap Reset settings. 
  6. Tap the Reset settings button. 
  7. If prompted, enter your PIN, Password or Pattern. 
  8. Finally, tap Reset.

After this, try to see if your Galaxy A20 is still running so slow because if it does, then move on to the next solution. 

ALSO READ: Samsung Galaxy A20 shows ‘Facebook keeps stopping’ error

Third solution: Wipe the cache partition

Performance issues can also be due to corrupt system cache. So, if your phone is still running so slow after doing the first two procedures, the next thing you have to do is delete the old cache so that it will be replaced with a new one. You can do so by wiping the cache partition. Here’s how…

  1. Turn off the device.
  2. Press and hold the Volume Up and Power keys.
  3. When the Galaxy A20 logo shows, release all three keys.
  4. Your Galaxy A20 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Once your phone has successfully rebooted, try to see if it’s still running so slow. If it does, then you have no other choice but to do the next solution. 

ALSO READ: Samsung Galaxy A20 keeps freezing. Here’s how to fix it.

Fourth solution: Backup your files and reset your phone

All performance issues can be fixed by a reset as long as the firmware hasn’t been modified in any way. So, assuming that your Galaxy A20 still has the stock firmware, you should be able to make it run faster again by doing this procedure. However, before you actually reset your phone, make sure to create a copy of your important files and data as they will be deleted and you may not be able to retrieve them after that. Once the backup is finished, remove your Google and Samsung accounts so that you won’t be locked out of your device. After which, follow these steps to reset your phone: 

  1. Turn off the device.
  2. Press and hold the Volume Up and Power keys.
  3. When the Galaxy A20 logo shows, release all three keys.
  4. Your Galaxy A20 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  5. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, ‘Reboot system now’ is highlighted.
  10. Press the Power key to restart the device.

I hope that we’ve been able to help you fix your Galaxy A20 that’s running so slow. We would appreciate it if you helped us spread the word so please share this post if you found it helpful. Thank you so much for reading!

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