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crwdns2944351:0crwdnd2944351:0How to Calibrate an Optical Fingerprint Sensorcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Arthur Shicrwdnd2933797:0crwdne2933797:0

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Introduction
UseFollow this guide to calibrate the optical fingerprint sensor in your Samsung phone or tablet. You should perform the calibration whenever you replace the screen, to ensure that the fingerprint sensor is accurate and secure.
Before you begin, download the [link|https://s3.amazonaws.com/ifixit-assets/static/standalone/samsung/GPT_GalaxyCal_release_1.0.1_usa.apk?1658807242|Galaxy Cal App].
***This calibration procedure is for optical fingerprint sensors only.*** Common Samsung devices include A series phones and Tab series tablets. If your Samsung device has an ultrasonic fingerprint sensor, don't follow this procedure.
Note: the device used is a Samsung Galaxy Tab S7+, but the procedure is identical across all Samsung devices.
Conclusion
To reassemble your device, follow these instructions in reverse order.