Hydrogen Os to Oxygen OS 7T

[mahzuf]

i've got china version. how can i convert to global rom? is there a way without use computer, adb command etc?

 

[sathya]

I "guess" you would have to download the global rom and install it via Settings > System updates > Gear Icon on top right > Local upgrade.
I would suggest you take couple more opinions before proceeding.

 

[Zmajvitez]

https://xdaforums.com/oneplus-7t/help/flash-chinese-hydrogen-version-to-oxygen-t3989877


It's all explained here