How do I get recovery key for Lumia 650 ?

[Latchy]

I did a hard reset of my Lumia 650 and wasn't aware of the Reset Protection feature. Now I'm getting constantly errors of my Microsoft account apparently not linked to the phone. Can you help me please in this awkward situation?

 

[Ryujingt3]

When I was on Windows Phone I reset my phones all the time and never had this issue. Can you give a screenshot of the error or message that you are seeing please?