Many users successfully initialize the fingerprint sensor during the initial setup but they don’t understand how to add another fingerprint later. But it is very important to know how to register another one because many of S10 owners will surely want to be able to unlock their phone with thumbs of both hands. Besides that, in some cases you may also need to allow you wife (or husband) to use the same smartphone and be able to quickly unlock it. In this step-by-step guide I will explain how to add another fingerprint on Galaxy S10 / S10 +/ S10e running Android 9 Pie.
Follow the steps to add another fingerprint on Galaxy S10:
- Open the Settings app (from the home screen: swipe up and find it in the app drawer or swipe down and tap the gear icon at the top of the shade).
- Go to Biometrics and security.
- Tap Fingerprints.
- Draw your current pattern of type your security code to authorize.
- Tap Add fingerprint.
- Enroll your fingerprint following on-screen instructions.
Note, that you can use up to 4 fingerprints at the same time on your Samsung Galaxy S10 phone.