Hello I have a Lobometrics with a RB433 inside, it has the OS 3.30. I want to update to a newer OS version but in the lobometrics web there isn't nothing.

Can I uploadad a new system as it was a normal RouterBoard RB433? or this Board has something different and It's dangerous to update with a "mikrotik" OS.

Thanks

Wasn't this clear enough five years ago? http://forum.mikrotik.com/viewtopic.php?f=13&t=51596.

Just use winbox, connect and update to whatever version you need. Only make sure you have license in new format. Search the forum or wiki how to update from 3.x to newer versions.