Help! Burnt Jumper t8sg v2 plus repair?

[Maxx]

Allo everyone!
I accidentaly burned my Jumper t8sg because I didn't notice the antenna was unscrewed . When powering it it started making weird sounds ... When I noticed the antenna wasn't screwed tight I understood that I just burned my TX...
What exactly is burnt and is it possible to replace it? I really wish I could do something with it .
Thank you for helping me !