Black Shark 4 Fingerprint Unlocking: Reasons and Solutions for Mysterious Missing

Hey, users of Black Shark 4! Suddenly found that your fingerprint unlocking function is missing? Don't worry, let's discuss the possible reasons and solutions together.

Software problem

Sometimes, the mobile phone system or fingerprint unlocking software may encounter minor troubles. Try restarting the phone, updating the system or cleaning the cache. Maybe you can unlock the fingerprint and bring it back into your sight!

Sensor problem

Fingerprint sensors may also need a little care. Wipe the sensor surface gently with a soft cloth, or contact our after-sales service center, they are experts in repairing and replacing sensors!

Operational problem

Maybe you accidentally deleted the registration fingerprint or changed the unlocking method. Go to the phone settings, check the fingerprint unlocking settings, and then add your fingerprint again!

Safety tips

Although fingerprint unlocking provides convenience, considering that fingerprints may be copied, using other unlocking methods (such as passwords or patterns) as backup can better ensure the security of mobile phones.

Technological frontier

Fingerprint unlocking is just the beginning, and there are more advanced unlocking methods waiting for us in the future, such as facial recognition and iris recognition. Keep up with the trend of science and technology, and let your mobile phone unlock more cool!