oppo f21 pro finger display fingerprint kaise lagaye
However, if you meant to ask how to set up the fingerprint sensor on an Oppo F21 Pro, here are the steps:
Go to the Settings app on your Oppo F21 Pro.
Scroll down and tap on the "Biometrics & Security" option.
Tap on "Fingerprint" and then enter your lock screen password or pattern.
Tap on "Add fingerprint" and then follow the on-screen instructions to scan your fingerprint.
You will be prompted to lift and place your finger several times to get a good scan.
Once the fingerprint is successfully scanned, you can give it a name and tap on "Done" to save it.
Now you can use your fingerprint to unlock your Oppo F21 Pro instead of entering your password or pattern every time.