SharePoint Server Activation

Sorry, not an answer but I just wanted to suggest that you consider instead installing and evaluating the SharePoint / Project Server trials for either 2013 or 2016 builds instead. IMO you would invest a lot of time into a solution that has been leapfrogged several times over in areas of functionality, stability, and easy of administration (and much less bugs inherent in the product compared to the 2010 builds).

Thank you, but I need exactly 2010.

Oh OK then back to your original question. The product key for Project Server 2010 trial is: W7FTF-FPKGY-WHYHD-JCQ9B-K8H2F
This is publicly available here: https://www.microsoft.com/en-us/download/details.aspx?id=14775

Does it take it?

Yes, Project Server took this key about a month ago. SharePoint Server took its trial
key as well. Now I want to activate them with normal key.
But SharePoint Server does not like SharePoint normal key
and requests for Server 2010 key.
Is it correct? Should I really enter Project Server key for SharePoint Server?

Just in case, are you following the instructions on this page?

https://technet.microsoft.com/en-us/library/cc263204(v=office.14).aspx

Yes, I followed these instructions

Ah OK. It seems the Project Server 2010 key updates both SharePoint Server and Project Server based on MSFT's guidelines. Check this one out...

https://technet.microsoft.com/en-us/library/hh297441(v=office.14).aspx

"In the previous procedure, the Project Server 2010 key upgrades both the SharePoint Server 2010 Trial and Project Server 2010 Trial to the licensed editions. You will not be required to use the same procedure to convert the SharePoint Server 2010 Trial version to the license, because this has already occurred through your Project Server 2010 key. It is important to realize that you are still required to own a SharePoint Server 2010 (Enterprise with CAL) license for this installation."

Thank you Greg. SharePoint Server took Project Server key, but now
SharePoint Central Administration does not show, which license I have.
Screenshot attached.
Untitled.png