Samsung Fingerprint Calibration Tool — Working & Premium
Modern Samsung Galaxy devices—ranging from the mid-range A-series to the flagship S-series and Z-Fold lines—primarily use two types of in-display fingerprint technology:
The PC software should automatically detect your device model and serial number. If it doesn't, select your specific Galaxy model from the dropdown menu.
This method works primarily on older Galaxy devices or specific carrier models. Open the stock app on your Samsung device. Dial *#0*# to open the secret hardware diagnostic menu. Tap on the Sensors or Fingerprint tile. samsung fingerprint calibration tool
For older or mid-range devices using optical scanners (e.g., A53, A54), you might need specialized alignment tools alongside the service menu. Note: This method often requires a calibration box/template to ensure accuracy. Open the dialer and type *#0*# . Select . Look for "Fingerprint Test" or "Calibration" .
Eliminates light refraction errors for under-display optical units. Use Samsung Self-Repair Assistant Open the stock app on your Samsung device
In newer Android updates (such as One UI 6 and later), Samsung has integrated basic calibration scripts directly into the system software. When combined with official parts from the Samsung Self-Repair program, users can trigger the calibration routine directly through the device's settings menu or via the official desktop application.
| Error Message or Problem | Possible Cause & Solution | | ------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | This is a common issue with some devices, such as the S20FE. The official app may not yet support your phone. Try the CixiTool approach or visit a service center. | | App fails to install, or file appears as a .jar | The downloaded file may have the wrong extension. Rename the file in your phone's "My Files" app by deleting the .jar at the end of its name. It should then appear as an installable .apk. | | Calibration fails, saying "FAILED" | Ensure you are using the correct calibration blocks and applying proper pressure. Also, make sure your phone's battery is sufficiently charged. If the problem persists, it might be a hardware issue. | | "Fingerprint Sensor Calibration Needed" after screen replacement but calibration fails | This can happen with third-party screens that aren't original Samsung parts. Some Galaxy models with unofficial screens may permanently stop the fingerprint sensor from working. | For older or mid-range devices using optical scanners (e
The most common symptom that you need this tool is the error message: This message is not a random software glitch—it is a security feature. If the phone detects that the hardware signature of the fingerprint sensor does not match the software calibration data stored in the system, it locks the biometric function to prevent security breaches.
Fingerprint sensor calibration is the process of recalibrating the optical sensor to work accurately with a specific display and phone hardware. It's most frequently required after a screen replacement because the screen's optical properties are part of the fingerprint recognition system. If the hardware changes, the sensor needs to be updated to these new conditions to function correctly.
Launch your calibration software on your PC (e.g., SamFW Tool). Navigate to the "Tools" tab and find Connect the phone via USB.