Last updated: 2023-11-29 by Andrew.

Fast charging is a feature on the Samsung Galaxy S23 that allows to charge the phone at higher speeds with 15W power. If fast charging doesn’t work on Samsung Galaxy S23, it could be due to a defective or incompatible charger/charging cable, or the fast charging feature is not enabled in the device’s settings.

In this guide, we will give you five (05) fixes with step-by-step instructions to resolve the fast charging not working issue on your Samsung Galaxy S23.

Note: Solutions in this guide will work on any Samsung Galaxy S23 model (S23, S23 Plus, and S23 Ultra models.)

Editor’s note: We created these instructions using a Samsung Galaxy S23 running Android 13. Depending on your device’s software version, some steps and menu positions may look slightly different.

Fix 01: Check the Charger and Cable

Fast charging only works if the charger can deliver 15W power and the USB-C cable supports fast charging. Therefore, the first step to resolve the fast charging not working issue on your Samsung Galaxy S23 is to check your charger and USB-C cable.

Check if your charger is original and compatible with Samsung’s fast-charging power standards. If it cannot produce at least 15W power, your Galaxy S23 won’t detect and show “fast charging” on the screen.

It is also worth mentioning that if the cable you are using to charge your device cannot transmit enough power, then having a compatible charger won’t fix the issue. So ensure both the cable and charger support fast charging.

Fix 02: Enable Fast Charging

The “fast charging” feature can be turned on and off in device settings. If the fast charging feature has been turned off, this is the reason why you don’t see your Samsung Galaxy S23 not fast charging. 

Therefore, you need to check your Galaxy S22’s power settings and turn on if fast charging is disabled.

Here are the steps to enable fast charging on your Galaxy S23:

1. Go to devices’ settings.
2. Select “Battery and Device care”.

3. Tap on “Battery”.

4. Scroll down and tap on “More battery settings”.

5. Enable “Fast charging”.

Once you have turned on fast charging, plug your Galaxy S23 into the charger to see if fast charging is working now.

Fix 03: Do a Software Update

If turning on fast charging does not work, it is the Android system on your Galaxy S23 causing the fast charging not to work. To fix it, you can do a software update as it brings new features and bug fixes that could resolve the issue. 

To update the your Samsung Galaxy S23, follow the steps below:

1. Go to Settings.
2. Go to “Battery and device care”.
3. Tap on “Software update”.

4. Then, tap on “Download and install”.

Fix 04: Clear the System Cache

Once you have updated your Samsung Galaxy S23’s software, you need to clean the system cache to remove outdated cache files. This helps your system to run smoothly so there won’t be any glitches preventing fast charging from working.

To do this, you need to boot your Galaxy S23 into “recovery mode”. If you don’t know, here is how to do that:

1. Turn off your phone.
2. Plug the USB cable into the device.
3. Press and hold the Power key + Volume up keys for a few seconds. When the recovery menu appears, release the keys.

After that, follow these steps to clear the system cache (wipe cache partition):

4. Use the volume keys, highlight the “Wipe cache partition”, and press the power key.

5. On the confirmation prompt, select “Yes” and press the power key again.

6. Once the cache is cleared, you will see the recovery menu again. Use the volume keys, highlight the “Reboot device now”, and press the power key again.

Fix 05: Take Your Samsung Galaxy S23 to a Repair Center

If fast charging still doesn’t work with your Samsung Galaxy S23, it is possible that the charging pin of the device is damaged. To check this, your next step should be to take your Samsung Galaxy S23 to a Samsung service center. 

To find the nearest Samsung service center, you can go to Samsung’s service locator page, and enter your location.