New to kenwood?

Hi!

Ive recently got gifted a Kenwood radio by a friend.

When i try to open it and use it, the radio says "UNPROGRAM"
Looking on the web, its a 200 eur software that is hard to get.

The radio is a NX-5800 and im looking to know if i can do something without buying the whole 200 eur license or im stuck with a brick?

Thanks.