Fix Google Pay on Custom Roms

If you're unable to use Google Pay on some Custom Roms, try this:

1. Flash MagiskHide Props Config and Busybox for Android NDK from MagiskManager

2. Reboot, open terminal emulator and enter "props". For Termux enter "su" first

3. choose Option 1, then Option f, then choose Xiaomi and Redmi K20 Pro

4. reboot and check for safetynet pass

5. In Magisk Hide, select Google Pay and Google Play services

6. Clear App Data of Google Pay

7. Reboot to TWRP

8. Go to Advanced / File Manager

9. Navigate to file /data/data/com.google.android.gms/databases/dg.db

10. Select chmod, enter "440" and confirm

11. Reboot to System and you should be able to use Google Pay