RajanPatel_dSNYBXKQah I assume you’re using N0S 2.0.4.
You can’t play Open Beta 1 because the build date 2.0.4 is newer than Open Beta 1. That’s why the system does not allow you to change it.
Unless you downgrade it back to 2.0.3 by using rollback zip on this thread because that zip bypasses the rules/something etc. that makes it allowed to be downgraded.
When I played OxygenOS back then, using a local upgrade, it had the same rules as this.
But, I’m not trying yet and this is my theory since can downgrade from Open Beta 1 to 2.0.3, and probably can downgrade from 2.0.4 to 2.0.3 by using the same rollback.
So, good luck and please backup your data first before proceeding with anything and if you have doubts, please reach the moderator or Nothing support. They are happy to help you. 😊
