Bambu A1 mini still operates on 1.04 firmware which does not include authorization “security feature”. Naturally, I want to avoid it.

I know I can meddle with router somehow, even if it does not have parental controls or other very clear option to leave it inside local network.

However I would prefer preventing update in some other way, if there is any. This little printer is quite portable and I sometimes bring it to other locations. Also, remote printing and monitoring are nice features, which would be a pity to lose.

What would you suggest, or maybe have done yourselves?