topic Re: Fingerprint issues in Solutions & Tips

Fingerprint issues

JB17 — Wed, 11 Mar 2026 05:20:46 GMT

I have had my S24 Ultra for over a year now and bought a Magic John screen protector and I have reset my fingerprint registration tons of times and it still won't read and I keep on have to reset it.

Is this my phone or the Magic John Screen Protector thats causes this problem and should I just take of the protector and if so any recommendations for screen protector that reads Samsung fingerprint scanner good?

Re: Fingerprint issues

RedDogRabbit — Wed, 11 Mar 2026 10:08:31 GMT

Most likely to be the screen protector you are using.. Never heard of that brand.. But unless it uses edge to edge adhesive, it probably leaves a gap between the screen & screen protector.

I've always used Whitestone Dome Tempered Glass screen protectors, which do use an edge to edge liquid adhesive.. never had any issues with the Finger Print Sensor.

Re: Fingerprint issues

Haisley — Wed, 11 Mar 2026 11:22:30 GMT

Hi JB17,

Screen protectors can sometimes affect the performance of the ultrasonic fingerprint scanner depending on their thickness and material. To determine whether the protector is contributing to the issue, we recommend temporarily removing it and testing the fingerprint sensor directly on the display. If the sensor works properly without the protector, this would confirm that the accessory is interfering.

For the best results, we suggest using a screen protector that is specifically designed and certified for Samsung Galaxy devices, as these are tested to ensure compatibility with the fingerprint scanner.

We appreciate your patience and the effort you’ve already put into troubleshooting. If the issue continues even without a protector, kindly let us know so we can continue to support you further.

Re: Fingerprint issues

gokongming — Wed, 11 Mar 2026 21:23:02 GMT

Whitestone dome for fingerprint is good. Been using it too.. the one with liquid glue and uv light installation.

Re: Fingerprint issues

Haisley — Thu, 12 Mar 2026 13:20:24 GMT

It’s great to hear that you’ve found the liquid glue and UV light installation method effective, especially for maintaining reliable fingerprint recognition.