i used to use this
https://drive.google.com/drive/mobile/folders/1ztDK7dJGDvTXtNLFeMDZPVavS583dJJt?usp=sharing
way back b4 when i had S7edge. it seems working that time. May be give
it a try.tutorial.https://youtu.be/6joVqoAx_Kw
NOPE, once you update, it's 100% irreversible. You can only re-install
the SAME version of the software or update to a newer version.. you
cannot revert back no matter what.
