This downgrade package is a universal downgrade package
1. This downgrade package can be used if you want to downgrade from oxygen to hydrogen.
2. If you want to downgrade from the official Android Q back to Android P, you can use this downgrade package.
All data will be erased! !! !!
Come on, make a backup.
1. Download the downgrade package.
2. Put in the root directory
3. Upgrade locally.
This ROM is the official designated downgrade package.