How can I change the .hu domain’s nameserver?

After login at in the domains link with M (manage) button, under the domain name you can see a short text with one input field.

Before do anything please check the domain with the new nameservers at regcheck
Domain:your domain
Nameserver (optional) : your new nameserver!
If you do not set a nameserver, the Registry will check your domain’s CURRENT nameserver, but the new nameserver setting will be not checked!

If domain checking procedure ends with a green line, the domain nameservers can be changed otherwise not!

Please write one of your nameserver to the input field, then press NsMod button. That’s all. Registry gets the zone from that one nameserver, then all other nameservers are automatically detected.