I have bought RouterBoard 411 with Level 3 license it came with RouterOS 4.5. I want to downgrade to 3.30, I transfered package via tool fetch, in System->Packages I clicked downgrade and I was watching on serial port what is happening. Verification was OK, RouterOS finished installing, and after reboot system stops booting on Starting Services.
The same problems occurs when I try to install from netinstall. Installation is successful, but it cannot boot (Starting Services). Upgrading to 4.10 and downgrading to 'any' 4.x version works ok. Any suggestion why it is happening?
Thanks for your time.