Samsung Galaxy A21s NFC Not Working – How To Fix? [Detailed Guide]

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Muhammad Tayyab


If you encounter such a situation where you find your Samsung Galaxy A21s NFC not working, then you should follow this guide to eliminate the issue. Here, we have covered some proven fixes that will lead you to fix the NFC issue on your smartphone.

NFC refers to “Near Field communication”. This technology allows you to perform several operations between two devices instantly. A bit similar to Bluetooth in functionality but different in nature. NFC also allows you to make contactless payments with the bank card info saved on your phone.


If the NFC feature is not working on your Samsung A21s, then you should perform a soft reset in the first place.

After that, enable the NFC feature. Go to “Settings->Connections->NFC and contactless payments->ON”. After that, Tap contactless payment->Select the NFC-payment app for example ‘GooglePay’ or ‘SamsungPay’, and make it the default payment method.

  • Your device should be in a range (10 cm) to communicate with other NFC devices.
  • Consider updating the software of your phone.
  • Unlock the phone while using the NFC feature.
  • Place the back of your phone on the NFC tag or POS machine and move it slightly.
  • Remove the phone case.

Guide To Resolve Samsung Galaxy A21s NFC Not Working? [Try Out These Fixes]

After following the above quick fixes, if you are still facing the NFC not working issue, then you should first perform a soft reset on your smartphone and see if it works.

  1. Perform Soft Reset
  2. Clear Cache and Data of NFC
  3. Disable Power Saving Mode
  4. Enable High-Performance Mode
  5. Update the phone software
  6. Wipe cache partition
  7. Make Default Payment Service
  8. Perform a Factory Reset

Perform Soft Reset

Adopting the soft reset method in the first place whenever you are facing any issue is most recommended. Most of the time, this method standalone succeed in eliminating all the issue you encounter.

soft reset (restart)

How To Perform Soft Reset on Samsung Galaxy A21s?

  • Simultaneously, press and hold the “Power” and “Volume Down” buttons.
  • Once, the power options appear on the screen, release all the buttons.
  • Now, tap on the “Restart” option to select and again tap “Restart” to confirm.
  • Wait for a while and your smartphone will boot up in a few minutes.

Clear Cache and Data of NFC

The NFC feature might not be working properly due to the data available in the cache memory. It might be corrupted or faulted.

Hence, you should simply clear the cache and data of the NFC feature by following the below steps.

  • Head over to the “Settings” on your phone.
  • Next, tap on the “Apps”.
  • Now, a bit down you will see your app’s label with three lines on the right side of it. Just tap on the “three lines” and then enable the option “Show systems apps”.
  • Go back and search for the “NFC” option in your apps list now.
  • Next, tap on the “NFC->Storage”.
  • Finally, tap on the options “Clear Cache” and “Clear Data” one by one.
  • After that, reboot your phone to take a fresh start.

You should also go for clearing the cache and data of the particular NFC-supported payment apps such as “Samsung Pay” or “Google Pay” that you are using for contactless payments.

  • Go to “Settings->Apps”.
  • Next, search and tap the NFC-supported app let’s say “Samsung Pay”.
  • Further, tap “Storage”.
  • Now, tap the “Clear Cache” and “Clear Data” options.

Turn OFF Power Saving Mode

If your phone is running on power-saving mode, most of the features that are supposed to be a burden on battery power will be disabled automatically.

To avoid unnecessary utilization of resources on the phone, the power-saving mode disables all background activities. Thus most payment apps that require communication with NFC in the background couldn’t do so.

Therefore, you should disable power saving mode on your smartphone while using the NFC.


How To Disable Power Saving Mode on Samsung Galaxy A21s?

  • Head over to the “Settings”.
  • Next, search “Battery” in the search bar.
  • Now, select the “Battery” option.
  • Scroll down a bit and you will see the “Power Saving” option. Just disable it.

Enable High-Performance Mode

In addition, you should also switch to “High Performance” mode at least at the time when you are using the NFC feature on your smartphone.

This will boost the performance of your smartphone and will let the NFC work properly.

high performance mode
  • Head over to “Settings->Battery and device care”.
  • Tap the “Battery” option.
  • Scroll down to the bottom and tap “More Battery Settings”.
  • Finally, tap the “Processing speed” and select the “High” option to activate faster data processing.

Update your Phone Software

There might be any software glitch in the form of bugs that is preventing the NFC from working properly. You should update your phone software to the latest version to eliminate the present bugs.

How To Update Software of smartphone
  • Open the “Settings”.
  • Further, scroll down to the bottom and then tap “Software Update”.
  • Finally, follow the on-screen instructions to download and install updates on your phone.

Wipe Cache Partition

Most of the time, the issue is with the cache memory of the phone present in the form of corrupted data. To clear the cache data completely, you should enter the recovery mode and do wipe cache partition on your phone.

how to wipe cache partition
  • Turn OFF your smartphone.
  • Next, press and hold the “Power” and “Volume UP” buttons until you boot into recovery mode successfully.
  • Further, select the “Wipe Cache Partition” option with the help of the “Volume” and “Power” buttons.
  • Now, reboot your phone by selecting the “Reboot the System Now” option.

Make Default Payment Service

If you are unable to make payments using NFC, then you might need to check the default payment method selected for NFC.

When trying to make a payment using NFC with a particular NFC app and it fails suddenly, then you should check whether the particular NFC app is selected as the default contactless payment or not.

In a nutshell, if you want to use any NFC app, then you should first make it your default payment service in the NFC settings on your smartphone.

Here’s, how you can do that,

default payment app in NFC
  • Head over to the “Settings” on your smartphone.
  • Next, tap “Connections”.
  • Now, you will be able to see the “NFC and contactless payments” option. Just tap on it.
  • After that, tap the “Contactless payments” option.
  • Here, you will find the list of all the available NFC payment-supported apps on your phone.
  • Choose the desired NFC app from the list, you want to use as your default payment service.
  • Finally, follow the on-screen instructions and you are good to go.

Perform Factory Data Reset

Factory data reset is the most effective method to eliminate any issue you are encountering. This method wipes all the data and set all the settings to default on your smartphone.

So what you get after performing a factory data reset is the fresh beginning of your smartphone and feels like you have just unboxed it.

Things to consider before factory data reset:

  • Charge your phone.
  • Back up your important data.
How To Perform Factory Data Reset

How To Perform Factory Data Reset on Samsung Galaxy A21s?

  • Head over to the “Settings” on your smartphone.
  • Next, tap “General Management”.
  • Scroll down to the bottom and you will see the “Reset” option. Just tap on it.
  • Here, you will see various reset options.
  • Tap on the one labeled “Factory Data Reset”.
  • Now, it will provide you with a list of information stating that all the data will be erased from your phone.
  • Simply scroll down to the bottom and tap on the “Reset” button.

Wait for the process to complete, once it finishes, the phone will boot up and will be directed to the Welcome screen. Now, set up your phone accordingly by following the on-screen instructions.

Bonus Tip: How To Transfer Files From Samsung Galaxy A21s To Other Devices Using NFC?

After the release of Android 10, it has been noticed that Android Beam is no longer available to serve for sharing data such as photos, videos, audio, and other files using NFC.

Therefore, it is not possible to share data with other devices on your Samsung Galaxy A21s using NFC.

Android just came up with an Alternative feature known as Nearby Share. It allows you to share Photos, videos, audio, apps, and other files with other devices that have Nearby Share enabled. It’s very simple to share things with this features.

How To Enable Nearby Share on Samsung Galaxy A21s?

Step 1: Head over to “Settings->Connections”.

Step 2: Next, tap on “More Connection Settings”.

Step 3: Here, at the top, you will see “Nearby Device Scanning”. Enable it by tapping on the toggle button.

How To Transfer Files Using Nearby Share on Samsung Galaxy A21s?

Step 1: You need to select the files, photos, videos, or apps to share.

Step 2: Once, you have selected so, tap on the “Share” button.

Step 3: Now, select “Nearby Share” among other available options.

Step 4: Your device will automatically initiate the searching process to search for the available device with nearby share enabled on it.

Step 5: Tap on the device name to select the desired device you want to share things with.

Step 6: After that, the selected device will receive a notification.

Step 7: Once he accepts the notification, the files will be transferred successfully.


We have covered all the fixes in detail to eliminate the NFC-related issues on Samsung Galaxy A21s. Before going to step into those detailed fixes, you should try out these things in the first place to check whether the problem gets resolved or still persists.

Perform Soft Reset -> Press and Hold the “Power” and “Volume Down” buttons simultaneously until the power options appear on the screen. Now, select the “Restart” option to reboot your smartphone.

Clear Cache and Data of NFC -> “Settings–>Apps–>Your Apps–>tap on the three lines at the right side->Show Systems apps->NFC->Storage-Clear Cache & Clear Data”. After that, reboot your phone.

If the problem still persists, then you should follow the other fixes covered in detail in this guide to eliminate this issue.

About Samsung Galaxy A21s


The phone comes with a 6.5-inch PLS LCD touchscreen display, 720 x 1600 pixels resolution. Moreover, It runs on Android 10, also upgradable to Android 12 including One UI 4.1 powered by an Octa-Core processor.

It offers multiple variants regarding storage, 32/64/128 GB with 2/3/4/6 GB of RAM, and also supports a micro-SD card.

The camera features a Quad 48MP + 8MP + 2MP + 2MP primary lens with LED flash including other features. In addition, a 13MP secondary lens for selfies is available in front.

It is powered by a Li-Po 5000 mAh battery.

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