I found the guide on here but it says, Here is a new tagmo (2.1). It does it all.... Or you can use the old way. But it doesn't really teach you how to use tagmo 2.1. I have a bunch of ntag215s and I have a wolf link amiibo bin file. I only have two options on the tagmo menu. None of this load key stuff is on there. I have: Load tag file Write to tag I select the "Load tag file" and select my wolf link bin and it says "Loaded tag file". Then I select "Write to tag" and I get this message: "Error: Source UID does not match the target!"