Fix Face Unlock Not Working on Samsung S21, S21Ultra, S21Plus

From the very first day, Samsung’s Face Unlock is monstrous, after receiving a lot of complaints, Samsung finally took a step ahead and improved Face Recognition to the next level. Later on, Samsung released several mid-range smartphones with Face Unlock features to quickly unlock the device without entering the PIN or Password. Unlike, password, pin, or pattern, Face Unlock is not secure, but the brand has added this feature to unlock the phone without manual intervention.

If you’re experiencing issues with Face Recognition on Samsung S21, S21Plus, or S21Ultra, do try our below-listed troubleshooting workarounds and get rid of face recognition not working on Samsung S21, S21Plus, S21Ultra,

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Fix Face Unlock Not Working on Samsung S21Ultra, S21, S21Plus

Remove Accessories (Hat/Eyewear)

While registering a Face ID, did you wear sunglasses/eyewear or Hat or anything that makes your appearance quite different than now? Most of the time, users try to unlock the device with Sunglasses or Masks, to be honest, sometimes the device recognizes your face, at the same time, Face Unlock won’t work.

If you’ve spectacles then add an alternate appearance wearing the spectacles to avoid removing the spectacles to unlock the phone. Meanwhile, you can remove the accessories as I mentioned, and try to unlock the phone.

Clean Front Camera

Front Camera plays a significant role in recognizing your Face when using Face Unlock. Bring a clean cloth, little damped, and clean the screen gently without pressuring or damaging the display, along with the front camera.

Add Alternate Face ID

We’ve seen many Samsung users fixing the Face Unlock not working issue on Samsung S21, S21Plus, S21Ultra by registering an alternate Face ID. Often system misinterprets the Face, and to overcome this possibility, registering an alternate Face ID works great. Keep the older Face ID as it is and add a new Face ID.

  1. Go to the Settings.
  2. Tap Biometrics and security.
  3. Select Face Recognition.
  4. Confirm your identity by entering the PIN, Pattern or Password.
  5. Select Yes or No when you’re asked, “Do you wear glasses”?
  6. Next, turn On and Off for the following options,
  7. Face unlock
  8. Stay on Lock screen until swipe
  9. Faster recognition
  10. Requires open eyes
  11. Brighten screen
  12. And complete the setup.

Toggle Fast Recognition On/Off

Samsung allows us to manually switch on and off the Fast Recognition option. When Fast Recognition is enabled, it reduces the security and could unlock the phone if someone try to unlock it by using your picture or video. Therefore, it is advisable to keep the Fast Recognition option Off. If it is already disabled, then enable it and try to use Face Unlock.

Update Phone

Still, having the same problem? Can’t use Face Unlock on Samsung S21, S21Ultra, or S21Plus? Updating the firmware might help to rule out the firmware glitch. For some people, updating the software works perfectly to fix Face Recognition. Connect the device to Wi-Fi and follow along.

  1. Go to the Settings.
  2. Tap Software update.

Erase Device to Factory Settings

Backup the device before you take this hard decision to erase the phone to Factory Settings. Since none of the above solutions did work for you, it’s time to erase the phone to factory settings.

  1. Open the Settings.
  2. Tap General management.
  3. Select Reset.
  4. Go to Factory data reset.
  5. Read the disclaimer and tap Reset.

Contact Samsung

It seems to be a hardware issue, which can’t be dealt with the above-mentioned solutions. In that case, contact Samsung Support, if the unit is damaged, let the Samsung Technician examine and take action.

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