Fingerprint error after setting up

[Millionaire]

Hello guys 

What's the best thing to do to fix ur finger print? After set it up it keep saying unknown finger print when I type my finger 

[Mujibar]

Clear the fingerprints and re-register them. Make sure your hands are dry when doing it. If you use a screen protector, turn on touch sensitivity in display settings.

[GaryB82]

Also something to think about to improve the Fingerprint sensor is to scan 4 fingers.  I do 2 of my left thumb and 2 of my right thumb.

[nullandvoid]

The S25 lets you have four fingerprints?  My phone only allows 3.

[GaryB82]

I thought it allowed 4 but I can't check at the moment

[eprim]

Sometimes it could just be what's on your hands, like products, hygiene stuff like that, I say that because sometimes I would have the same problem, but what I do i would just wash my hands and in the security print is working like a charm.

[eprim]

Fit bit, then the security fingerprint is working like a charm.

[Millionaire]

What is fit bit ? I'm new to Samsung lol

[GaryB82]

That's a good question Fit bit is a different company that makes fitness trackers.  I'm trying to figure out what they were referring to.

[eprim]

Fitbit means typo