problem

[Bappaa2019]

1. Finger sensor is not properly work 

2. Battery power is too fast down

[akashreturns]

1. try re registering fingure
2.for battery issue
Download and install this app

https://play.google.com/store/apps/details?id=com.tafayor.killall

it force stop all baground apps.

3.if it doesnt works Do a cache only wipe from phone recovery.

[JeevanSubhashWarde]

1 Register your fingerprints again..
2 please change the resolution of display to HD OR FHD from setting>display>resolution>change.

When its Samsung Galaxy it's always the power of display resolution cause it's high density display.
So please change it and check after that.
Happy Galaxying...👍👍👍👍👍

[Bappaa2019]

A50
display resolution not changed