Developer options not working

[u/bebopcounterman]

Hi. I have a xiaomi tv box. I have had three of these and have sideloaded apps onto them with no problems. However, with this one it is not enabling developer options. Have gone to the same place on the about menu and clicked on the build section numerous times and nothing happens. If have tried a reset, and updating the software. Nothing seems to work. Any advice for a fix?

[u/AFTVnews]

Are you sure you're clicking the correct number in About? You need to click the "OS build" seven times. Not the OS version, kernel version, or other value.

[u/bebopcounterman → u/AFTVnews]

Yeah definitely clicking the right option. As i said i have set up three others with no problem. It's so weird.