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Update your device’s software, and then re-register your fingerprint. Perform the following operations and check if the problem is resolved. Details Tips: How to check the latest software.Find and tap Settings → System → Advanced → Software update. If the following comment is displayed, it is the latest SW: "Your device already has the latest available system updates." To re-register your fingerprint Clean the fingerprint sensor gently with a clean and dry cloth.Tap Settings → Security → Fingerprint ManagerRe-enter your PIN or password.Delete all registered fingerprints.Tap Add fingerprint and register your fingerprint.Try to add the same finger if it still needs to be improved. You can register at most 5 fingerprints. To add your fingerprint Tap Add fingerprint, and register the same finger to Finger 2, 3, 4. or 5.Please shift your finger slightly to the first registered position.You can try this instead of step 2 or additionally Rotate your finger 90 degrees and register it.Fingerprint authentication works based on fingerprint feature-point information. Therefore, fingerprint authentication may not be possible when the fingerprint doesn't have sufficient feature points. Authentication performance (authenticating a fingerprint when the fingerprint sensor is touched correctly) depends on the condition of the fingerprint. If your fingerprint is in any of the following conditions, registration, and recognition of the fingerprint may be impossible due to deteriorated authentication performance. To improve the performance, try wiping or washing your hands clean, authenticating with a different finger, etc. Wrinkled or wet after taking a bath, etc.Covered with a large amount of sweat or grease, such as hand creamDirty with mud or oilRough or injured (cut, inflamed, etc.)Extremely dryChanged in the pattern due to weight loss or gainScraped and fadedExtremely different at the time of registration and authenticationNotes on the use of the fingerprint sensor Don't hit the fingerprint sensor or apply strong impacts to it. Also, don't scratch or poke the surface with a sharp object. Doing so may cause a malfunction or damage.Don't attach stickers to the fingerprint sensor or smear it with ink, etc.If the fingerprint sensor gets dirty, fingerprint registration and recognition may become impossible due to deteriorated authentication performance. Occasionally clean the surface of the fingerprint sensor with a soft, dry cloth. (Please do not wipe with anything containing water, alcohol, disinfectant, etc.)If the Fingerprint Sensor still does not work, follow these steps: Use the Tests feature to perform a Fingerprint Sensor test.Use the Xperia Companion software to perform software repair. |
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