How to downgrade RouterBoard software?

Hi, I experimented with 6.41 but I’d like to go back to the bug fix version. Ive successfully reverted the packages, but I am unable to downgrade the firmware.

Is this possible?

Thanks

Yes, is possible to downgrade the firmware through “/system routerboard upgrade”.
Isn’t recommend to do with a version below from the installed on RB.

You mean software (RouterOS).
Firmware is something else.

I am sure that marrold knows it.

Maybe, but it gives wrong answers (see first answer that is about RouterBOOT)