The iPad cannot use fingerprints while charging, possibly due to the following reasons:
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1. Low battery: If the iPad Air's battery is low, it will not work properly, which may cause the fingerprint recognition function to fail. In this case, you should try to use the power adapter to charge the device and check that the battery is sufficient.
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2. The fingerprint sensor or cable is damaged: The fingerprint sensor is the hardware component responsible for identifying fingerprints, and the cable connects the fingerprint sensor to the motherboard. If the fingerprint sensor or cable fails, the fingerprint recognition function cannot be used. In this case, you need to contact Apple after sales or go to an authorized repair shop for repairs.
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3. Make sure your fingers and home button are clean and dry, and that you are not using a protective case or screen protector that covers the home button or the ring around it.
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4. If you are not using the latest version of iOS, the fingerprint function may be affected. Ensure that you are using the latest version of iOS.
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If the above cannot solve the problem, it is recommended to contact the official after-sales service center or find an authorized repairman to solve the problem
You can use fingerprints. There is no conflict between charging and fingerprints