Hi,
I have a routerboard 411/411R with license level3 RouterOS V3. Today I tried to Netinsall and upgrade it to a newer RouterOS version and a newer key format. Finally I upgraded it to RouterOSv4.1 but as you see in below picture, unfortunately the license key of my routerboard has been gone!! And it could not upgrade the key. It shows Level0

So I'm wondered why it is happened? And what can I do to correct the problem?
Any hint would be very appreciated.

upgrade once more to v6.13, and then make supout.rif file and email it to support@mikrotik.com

new key will be issued

upgrade once more to v6.13, and then make supout.rif file and email it to support@mikrotik.com

new key will be issued

Thank you normis for your prompt reply

I just do this, upgarde to V6.13 and send the new generated supout.rif file for support team.

Hope to have a soon response from them.

upgrade once more to v6.13, and then make supout.rif file and email it to support@mikrotik.com

new key will be issued

Hi Normis,
I did what you said, and they sent me another key. It works. Thanks a lot for your help dear Normis