How do I bypass developer mode blocking?

How do I bypass developer mode blocking? If you see that dev mode is blocked, do NOT turn off your Chromebook, it will take you back to register your Chromebook again do NOT go through this process, instead, try pressing esc + refresh + power again. Press ctrl + d . Press space (the spacebar) or enter (enter). Repeat this process continually until it works.

If you see that dev mode is blocked, do NOT turn off your Chromebook, it will take you back to register your Chromebook again do NOT go through this process, instead, try pressing esc + refresh + power again. Press ctrl + d . Press space (the spacebar) or enter (enter). Repeat this process continually until it works.