Pass safetynet(LineageOS)

Register GSF of your device


Method 1: Most simple
1. Re-lock Bootloader if you have unlocked it on your phone.
2. Uninstall Magisk and unroot device.
3. Restore device to complete stock with stock recovery.
4. Flash certified Gapps..

Method 2:
1. You will need to register Google Service Framework (GSF) of your Android device
2. Get GSF ID. Get GSF Device-ID
3. Convert the code from hexadecimal to decimal. Change Webpage
4. Go to this Google Device registration page.
5. Enter your decimal GSF Device-ID in the “Android ID” box and tap on “Register”.
6. Google Play Store app->Menu->Settings->“Device certification”

P.S. Unwork-->OmniRom 15.1

Method 3:
1. install Magisk
2. Reboot to system and check for certification.



Refer webpage.
https://lineageos.org/Google-Play-Certification/
https://www.androidsage.com/2018/03/29/fix-device-is-not-certified-by-google-error-on-play-store/