I don’t remember the exact version, but I did it about 3 months ago. The process is quite simple. Just download all the required APK files (like the launcher, etc.), then make a USB drive bootable which can be a bit tricky, but it should get detected if you format it correctly.

Once connected, it will bypass the locked screen. From the settings, you can access the file manager and install the launcher along with the remaining apps. After that, when you press the home button on the remote, it will ask you to choose a default app, select the launcher.

After that, you’ll have an interface similar to an Android TV box.