How to Fix Fingerprint Samsung Galaxy Z Flip 4 Problem

The Samsung Galaxy Z Flip 4 is one of the most popular smartphones on the market. However, like any smartphone, the Korean manufacturer’s phone is sometimes victim of bugs or malfunctions. 5G refusing to work, USB-C headset adapter not recognized or fingerprint reader problems, here are some of the most common problems that Galaxy Z Flip 4 users may encounter.

Fix Samsung Z Flip 4 Fingerprint Sensor Not Working

we will walk you through the steps to fix the fingerprint sensor on your Samsung Z Flip 4 if it’s not working properly.

Step 1: Clean the Fingerprint Sensor

1. Use a microfiber cloth or a soft, lint-free cloth to gently clean the fingerprint sensor area. Make sure to remove any dirt, smudges, or residue that may be causing issues with the sensor.
2. Clean your finger as well to ensure there’s no oil, sweat, or dirt that could interfere with the sensor’s ability to read your fingerprint.

Step 2: Check for Software Updates

1. Go to Settings > Software update.
2. Tap on “Download and install” to check for any available updates. If there’s an update, download and install it, as it may fix the fingerprint sensor issue.

Step 3: Re-register Your Fingerprint

1. Go to Settings > Biometrics and security > Fingerprints.
2. Enter your current security method (PIN, pattern, or password) to access the fingerprint settings.
3. Remove your existing fingerprint by tapping on the fingerprint and selecting “Remove.”
4. Tap on “Add fingerprint” and follow the on-screen instructions to re-register your fingerprint. Make sure to cover the entire sensor with your finger and adjust your grip as needed for the best results.

Step 4: Restart Your Device

1. Press and hold the Power button on your Samsung Z Flip 4.
2. Tap on “Restart” or “Power off,” then power the device back on after a few seconds. A simple restart may resolve any temporary glitches affecting the fingerprint sensor.

Step 5: Perform a Factory Reset (last resort)

Note: Performing a factory reset will erase all data on your device, so make sure to back up your important files and information before proceeding.

1. Go to Settings > General management > Reset > Factory data reset.
2. Scroll down and tap on “Reset” and then “Delete all” to confirm.
3. Your device will restart and reset to its factory settings. After the reset, set up your device again and register your fingerprint to see if the issue is resolved.

Fix Samsung Galaxy Z Flip 4 Unlocking Takes Too Long

Samsung Galaxy Z Flip 4 has very quickly risen to the top of the mid-range smartphone ranking. IP67 certification, very bright and contrasted Amoled screen, very nice finishes, the Samsung phone has strong arguments to make.

However some Z Flip 4 owners are sometimes confronted with some problems. Most of the time these bugs are corrected via the updates provided by Samsung, but this is not always the case.

Indeed, some Z Flip 4 owners have complained about a too high latency time when unlocking the phone with the fingerprint reader. Fortunately, there are a few solutions to solve this type of problem.

1. Open the Samsung Galaxy Z Flip 4 settings
2. Select the Biometrics and Security section
3. Then click on Fingerprints
4. Press the Show animation when unlocking switch to disable this feature

In the vast majority of cases, disabling the animation will be enough to drastically reduce the latency time when unlocking the phone. However, it should be noted that with the arrival of edge-to-edge screens and the disappearance of physical buttons, the fingerprint sensor is now located under the screen.

This location can sometimes cause some problems. If you are having trouble unlocking your Z Flip 4 and you are using a tempered glass screen protector, you should know that it is possible to increase the touch sensitivity

1. Open the settings of your Samsung smartphone
2. Go to the display section
3. Activate the option Increase touch sensitivity

These two tricks should allow you to unlock your phone much faster If you have a problem with your fingerprint reader, remember to restart the configuration.

Conclusion

If you’ve tried all the troubleshooting steps above and your Samsung Z Flip 4 fingerprint sensor is still not working, it may be a hardware issue. In this case, contact Samsung support or visit an authorized service center to have your device inspected and repaired.