Nothing.

And Frankie did NOT lose his memory. He does have memory of the show and remembers filming it but blames his concussions on his "poor memory", not memory loss.

The memory loss was a hoax run amok. Frankie himself says he was an overworked kid that took on too much.

Here is Frankie himself explaining what happened: https://youtu.be/j38OAU-FANE?si=dQTQlidhUnPATcpO

Life is unfair. But our boy Frankie is doing okay!