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Display & FIngerprint issue

(Topic created on: Friday)
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RonnyGupta
Active Level 2
Options
Galaxy S
After recent update of January i am facing display related issues for s21 fe
  •  fingerprint icon is showing sidemiddle of display and not working.
  • On lock screen lower half display is being so bright & upper dusplay is so dim .
Please let me know what can i do ?

1 Solution


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Solution
Wodehouse
Expert Level 5
Galaxy S
It sounds like the January update has introduced some frustrating display issues on your S21 FE. Let's troubleshoot this:
1. Basic Troubleshooting:
* Restart: The classic first step. A simple reboot can often clear minor software glitches.
* Check for Updates (Again): Go to Settings > Software update > Download and install. Even if you recently updated, Samsung might have released a hotfix to address these problems. It's worth double-checking.
2. Display Settings:
* Brightness: Go to Settings > Display > Brightness. Make sure it's not set too low. Try manually adjusting it and see if the uneven brightness persists.
* Adaptive Brightness: Toggle Adaptive brightness on and off. Sometimes this can reset the sensor and fix odd brightness behavior.
* Screen Mode: Experiment with different screen modes (Vivid, Natural, etc.) in Settings > Display > Screen mode. See if this makes any difference.
3. Cache and Apps:
* Clear Cache Partition: This can resolve issues with corrupted cache files:
* Turn off your phone.
* Press and hold the Volume Up button and the Side button until the Android recovery screen appears.
* Use the Volume Down button to highlight "Wipe cache partition."
* Press the Side button to select.
* Select "Yes" to confirm.
* Once complete, select "Reboot system now."
* Check for App Conflicts: Think about any new apps you installed around the time the problems started. Uninstall them to see if they're the culprit.
4. Fingerprint Sensor:
* Rescan Fingerprints: Go to Settings > Biometrics and security > Fingerprints. Remove your existing fingerprints and add them again, making sure to cover the entire sensor area.
* Screen Protector: If you use a screen protector, make sure it's designed for the S21 FE and compatible with the fingerprint sensor. A poorly fitted or incompatible protector can definitely cause issues.
5. If Nothing Works:
* Samsung Service Center: This is the most important step. Since the issues appeared after a software update, it's highly likely a bug. Samsung technicians can diagnose the problem and potentially apply a fix or reinstall the firmware. Don't delay this, especially if your phone is still under warranty.
* Report to Samsung: Use the Samsung Members app or their support website to report the problems. The more reports they get, the more likely they are to prioritize a fix.
Crucial Advice:
* Document Everything: Before going to the service center, take screenshots or even a video of the display issues. This will be very helpful for the technicians.
These display problems are definitely concerning, and since they appeared after a software update, it strengthens the case that it's a software bug. Don't hesitate to contact Samsung support or visit a service center. The sooner you address it, the better.

If this reply answered your query please tap 3 vertical dots to the right of my reply and tap "Resolved". Thank you 😊

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8 Comments
Wodehouse
Expert Level 5
Galaxy S
Which model ?
RonnyGupta
Active Level 2
Galaxy S
S21 fe
0 Likes
Solution
Wodehouse
Expert Level 5
Galaxy S
It sounds like the January update has introduced some frustrating display issues on your S21 FE. Let's troubleshoot this:
1. Basic Troubleshooting:
* Restart: The classic first step. A simple reboot can often clear minor software glitches.
* Check for Updates (Again): Go to Settings > Software update > Download and install. Even if you recently updated, Samsung might have released a hotfix to address these problems. It's worth double-checking.
2. Display Settings:
* Brightness: Go to Settings > Display > Brightness. Make sure it's not set too low. Try manually adjusting it and see if the uneven brightness persists.
* Adaptive Brightness: Toggle Adaptive brightness on and off. Sometimes this can reset the sensor and fix odd brightness behavior.
* Screen Mode: Experiment with different screen modes (Vivid, Natural, etc.) in Settings > Display > Screen mode. See if this makes any difference.
3. Cache and Apps:
* Clear Cache Partition: This can resolve issues with corrupted cache files:
* Turn off your phone.
* Press and hold the Volume Up button and the Side button until the Android recovery screen appears.
* Use the Volume Down button to highlight "Wipe cache partition."
* Press the Side button to select.
* Select "Yes" to confirm.
* Once complete, select "Reboot system now."
* Check for App Conflicts: Think about any new apps you installed around the time the problems started. Uninstall them to see if they're the culprit.
4. Fingerprint Sensor:
* Rescan Fingerprints: Go to Settings > Biometrics and security > Fingerprints. Remove your existing fingerprints and add them again, making sure to cover the entire sensor area.
* Screen Protector: If you use a screen protector, make sure it's designed for the S21 FE and compatible with the fingerprint sensor. A poorly fitted or incompatible protector can definitely cause issues.
5. If Nothing Works:
* Samsung Service Center: This is the most important step. Since the issues appeared after a software update, it's highly likely a bug. Samsung technicians can diagnose the problem and potentially apply a fix or reinstall the firmware. Don't delay this, especially if your phone is still under warranty.
* Report to Samsung: Use the Samsung Members app or their support website to report the problems. The more reports they get, the more likely they are to prioritize a fix.
Crucial Advice:
* Document Everything: Before going to the service center, take screenshots or even a video of the display issues. This will be very helpful for the technicians.
These display problems are definitely concerning, and since they appeared after a software update, it strengthens the case that it's a software bug. Don't hesitate to contact Samsung support or visit a service center. The sooner you address it, the better.

If this reply answered your query please tap 3 vertical dots to the right of my reply and tap "Resolved". Thank you 😊
Kuldip_india
Expert Level 5
Galaxy S
May be your phone is dropped somewhere
RonnyGupta
Active Level 2
Galaxy S
Nope not even once
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cs_member10
Expert Level 5
Galaxy S

Dear Samsung Member,

Greetings from Samsung Customer Support!

At Samsung, we always aim to provide impeccable services to our customers, and we highly regret that you feel this way.

Please follow these easy troubleshooting steps which may help in resolving this issue:

1. Galaxy device fingerpint issue:

● Ensure that your fingers are clean and dry.
Note: If the skin on your fingertips is peeling or cracking, or your fingerprint is difficult to capture, the fingerprint ID on your phone may not work.

● If your fingerprints fail to unlock the phone while the phone is recharging, remove it from the charger and try again. If you are charging the phone with a charger and data cable from other brands when you use fingerprints to unlock the phone, they may interfere with the fingerprint sensor and cause the recognition to fail.

● Clean the fingerprint sensor with a soft cloth. Make sure the fingerprint sensor is dry and free from any debris that may cause the sensor to be unable to recognize the fingerprint.

● Remove the current fingerprint and set up the fingerprint again. When you touch the sensor to set up a fingerprint, make sure you set the entire fingerprint, including the outer area of your fingertip. Setting the entire fingerprint area enables successful fingerprint recognition with any grip.

● How to remove Fingerprint: Path: Settings> Biometrics and Security> Fingerprints> Fingerprint1> Remove> Remove again to confirm.

● How to Set up Fingerprint: Path: Settings>Biometrics and Security> Fingerprints> Fingerprint> Scan your fingerprint> Place your finger on the sensor, then lift it off when you feel a vibration> Continue> Reposition your finger each time to capture the edge of your fingerprint> Done> Fingerprint added successfully.

● Try Safe mode: https://www.samsung.com/in/support/mobile-devices/safe-mode-on-samsung-phones/

2. Galaxy device fingerpint issue: ● Go to Settings>Display>Adjust the brightness.

● You can reset your device by following the steps.
1. Kindly create a data backup of your device via the SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
2. Remember the Google password before resetting the device because it is required during initial setup.
3. If you do not remember the password then advise to reset (Forgot password) your Google account.

Path: Settings> General Management.>Reset>Temporary cloud backup or External storage backup>After backup tap on Factory data reset to reset your device to its factory default settings.
This will erase all data, including files and downloaded apps.

If the issue persists, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on send feedback> Choose Composer> Select error report> select the appropriate issue category> Type your query and send).


Warm Regards,
Samsung Customer Support

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goodthings
Expert Level 5
Galaxy S
Kindly complaint to Samsung customer support through Samsung Members App as error report also send log files Along with this error report for this issue and wait for next update may be fix it by Samsung team soon. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
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goodthings
Expert Level 5
Galaxy S
Your's most welcome to here.
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