Disable Jumper Reset

Hi

There is a way to disable the reset jumper, I would avoid that my clients are reconfigured the RouterBOARD alone.
I tried it on a RB433AH with firmware 5.20 using the command \system routerboard settings set enable-jumper-reset = no and it works but with the firmware revision rc6.7 does not work.

You know tell me if there is a workaround?

thanks