how to downgrade to 3.22 version??

i have routerboard 433 uah with mikrotik os version 4.11 level 4 i want to downgrade to version 3.22

how can i do that without losing my license ??

any help plzzzzzzzzzzzzzzzzzzzzzzzzzzzz

just upload necessary files to the router and press Downgrade button under System → Packages menu

if it will say something about the license, try to request one on mikrotik.com website in your account. in case of failure you can always use NetInstall to revert things back

p.s. don’t forget about backup