my brother's launcher broke and i need help fixing it

Brought a super king one if it is a right spinning one, if not i recommend to buy a Master Diabolos
"he ask me to fix" Like everyone has told you a million times already, Get A New One. You lack the skill to fix one, period. From the type you describe, it's not one that can be fixed anyway.

"yea but he got one allready" Cool, thread over then.

"yes i know but my bro wants me to fix it" Too bad. You can't.

"ok but hes really wanting me to fix it for him" That's too bad, you can't. You don't have to do anything for him. Tell him not to break it in the first place.

"my brother wants to compete in a tournamet" Good news, he has plenty of time to get a new launcher before the next tournament.

"ok but he doesn't want me touching his new one" That's nice, also not relevant.

powerboi I'm convinced you're a troll account, or very young and unwilling to learn and listen. I'm locking this thread. If you open another one like this there will be consequences.