How to fix Galaxy A80 won’t fast charge | fast charging won’t work

The Galaxy A80 comes with 25-W fast charging capability. If your Galaxy A80 won’t fast charge all of a sudden, you need to do some troubleshooting steps to know what is causing the problem. This post should help you do that.

Before we proceed, we want to remind you that if you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page. When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

How to fix Galaxy A80 won’t fast charge | fast charging won’t work

One of the common issues in Android is about charging. If your Galaxy A80 won’t fast charge and you have no idea how to fix it, follow the troubleshooting steps in this guide.

Galaxy A80 won’t fast charge solution #1: Turn on fast charging

Fast charge function is enabled on your Galaxy A80 by default. If you did some changes on your phone before, it’s possible that you have turned off fast cable charging by mistake. This can sometimes happen so all you need to do is to turn the feature back on. To do that, follow these steps:

  1. Open Settings app. 
  2. Tap Device Care.
  3. Tap Battery. 
  4. Tap Settings icon at upper right.
  5. Tap Settings.
  6. Enable Fast cable charging.

After checking if fast cable is turned on, charge the phone again to see if it works.

Galaxy A80 won’t fast charge solution #2: Restart device

Sometimes, minor bugs may develop after a device is left to run for a long time. It’s recommended that you restart your device at least once a week to prevent issues from bugs of this type. As a troubleshooting step in this situation, you want to ensure that you’ve rebooted the device. Try restarting it normally first by pressing the Power button to access the boot menu. Then, select Restart option and see if that works.

Another way to restart the device is by pressing and holding the Volume Down button and the Power key at the same time for 10 seconds or until the device’s screen turns on. This simulates the effect of having disconnected the battery from the device. If this works, this may unlock the device.

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. If nothing changed though, proceed to the next suggestions.

Rebooting your device regularly at least once every week can be beneficial. If you tend to forget things, we suggest that you configure your phone to reboot on its own. You can schedule it to do this task by doing these steps:

  1. Open Settings app.
  2. Tap Device Care.
  3. Tap the 3-dot at the top.
  4. Select Auto restart. 

Galaxy A80 won’t fast charge solution #3: Check charging accessories

If your Galaxy A80 won’t fast charge, the next troubleshooting step that you must do is to see if it’s because of bad charging cable and/or adapter. When it comes to any charging issue on Samsung Galaxy devices, one of the important basic things to do is to ensure that you use official Samsung accessories. If you are not using the charging cable and adapter that came with your device, make sure that you use them at this time. If you can’t readily find the original cable and adapter, try to borrow them from someone. Or, you can visit your local Samsung store and charge your phone using their original cable and charger.

Sometimes, third party cables and adapter may not be compatible with a Samsung Galaxy device. Get rid of them and switch to the original ones that came with your box.

Galaxy A80 won’t fast charge solution #4: Replace charger and cable

In case there’s a problem with the accessories you’re using right now, the next troubleshooting step that you want to do is to use another set of accessories. Like the phone itself, a USB cable can go bad for a number of reasons. The official Samsung USB cable has many tiny wires inside that can break easily if you don’t handle them well. The more of these tiny wires are broken, the smaller the amount of energy is being transferred to your device while charging, which can be the reason for slow charging. If there are obvious signs of damage in the cable, you should consider getting a new one as a troubleshooting step and potentially as a solution.

Alternatively, you can check if the reason for the issue is your cable or adapter by using them to charge another compatible Samsung Galaxy device. If the second device won’t fast charge as well, then you can bet that there might be an issue with one of them.

Galaxy A80 won’t fast charge solution #5: Power down when charging

In some cases, charging may appear slow if a phone loses power more than the charge that is coming in. This can be due to a software glitch, battery issue, or too many apps running in the background at the same time. To see if any of these is the reason for your problem, try to turn the device off and see how it charges. If fast charging works while your S10 is off, you must troubleshoot further to know where the problem lies.

Galaxy A80 won’t fast charge solution #6: Refresh system cache

If your Galaxy A80 fast charge stops working after installing a system update, there may be a problem with the system cache. If this cache gets corrupted or outdated, there might be all sorts of bugs that can develop. For some, the issue may be minor while others may experience more severe cases. To ensure that your system cache is in good shape, you can follow these steps:

  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 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 to highlight “wipe cache partition.”
  5. Press the Power key to select.
  6. Press the Volume down key to highlight “yes” and press the Power key to select.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Galaxy A80 won’t fast charge solution #7: Calibrate OS and battery

Power management in Android is usually done under the hood and no user intervention is supposedly needed. In reality though, this does not happen all the time. Sometimes, the battery may not work as expected, which, in turn, may manifest as a charging issue. If you can get the phone to fast charge again after doing any of the troubleshooting steps in this post, be sure to recalibrate the operating system so that it gets accurate battery level readings. Here’s how:

  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 A80 won’t fast charge solution #8: Boot to Safe Mode

Did you start having trouble after installing a new app? If the answer to that is yes, then what you want to do is delete that app. If that will fix the problem, then good for you. However, if you can’t remember what app you install, the best thing to try is to reboot the device to safe mode. In this mode, all third party apps will be suspended and won’t be running. If your Galaxy A80 charges normally and fast on safe mode only, that means that you have a bad app problem.

To restart your device to safe mode:

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

If your phone will fast charge only on safe mode, that means there’s an app that affects Android. To identify which of your apps is the source of trouble, you must use elimination method. Here’s what you can do:

  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 A80 is still problematic, repeat steps 1-4.

Galaxy A80 won’t fast charge solution #9: Install updates

Sometimes, the only way to fix bugs is to do one simple thing: install updates. Be sure to install any available system and app updates. If you’re lucky and the problem is known to developers, an update now may fix it.

Galaxy A80 won’t fast charge solution #10: Factory reset

The final device troubleshooting that you can do is wipe the phone. If the reason for the problem is software-related, factory reset will most likely help. Be sure to create a backup of your personal data before you do it.

To factory reset your phone:

Method 1: How to hard reset on Samsung Galaxy S10 via Settings Menu

  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 S10 using hardware buttons

  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 A80 won’t fast charge solution #11: Get help from Samsung

If none of the steps above help and your Galaxy A80 still won’t fast charge, visit your local Samsung store or Service Center. Let a professional check the device so you’ll know if the problem can be fixed, or if needs replacement.


Engage with us

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.

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Twitter pages.