Hi, i bought routerboard 112 a few days ago. A man from whom I bought rb tells me that i must instal mikrotik on rb because he was playing with the software and it broke. if you can help me to install mikrotik on this rb I would be grateful. Sorry if my english is bad !
The RB-112 has been End of Life for years, so if someone just sold that to you, I would be a little cautious. That having been said, here are the instructions on how to use Netinstall to re-install the OS. Before you do that, try to reset the RouterBoard with the reset button on the side.
http://wiki.mikrotik.com/wiki/Manual:Netinstall