Chosen Solution
After disassembling my solo 2’s the pins for the hinges fell out. How do I go about fitting the pins back into the hinges?
go to a fixing store and learn the lesson of not opening things up like that :)
Here is a youtube video including everything you need to put beats back together. https://youtu.be/sKM2dy0uCHU or if you cant fix them he fixes them for $40.