Hi folks!

I Bought a RB433AH with routeros version 4.11 but I need to run routeros 3.28 version. I procedded to downgrade. Upload routeros-3.28-mipsbe.npk e run on terminal /system package downgrade. After the reboot I got a license error, asking to a valid key.
I tried other ways like:
Downgrade the firmware of the routerboard and then routeros 3.28 version, the system did not boot, and I need to use a serial connection e netinstall to boot the os again.
Do Anyone knows how do it?

Thanks
André Mantoani

http://wiki.mikrotik.com/wiki/Manual:Li ... bol_SoftID

I had already seen this , but the rb came with the routeros 4.11, how can i get the old format key from this boad?

tks

André

You can't.