I would like to setup fingerprint unlock on my Nexus 6P. I believe I have it setup correctly, but when I go to unlock the phone by putting my finger on the sensor, it vibrates once then makes me put in my pattern to unlock the phone. Isn't there a way to unlock with just the fingerprint and not have to do the pattern also?
Hope this helps ! Setting up the finger print on nexus devices
You probably need to set up your fingerprints again, making sure to cover as much of your finger as possible. You need to do the tip, sides and center of the tip of your finger in order for it to be able to properly identify your finger. If you don't train it properly then it won't be able to reliably identify your fingerprint so will vibrate to let you know it hasn't read it properly.
The more you are able to successfully unlock your phone the better the detection gets as it learns with each unlock.
If you have successfully set taught your device your fingerprint(s) the you should be able to unlock it with either your fingerprint or the pattern. It should not require both to unlock (although both do need to be configured so that you have a backup option if your fingerprint isn't recognised)