Motherboard defect theta s

Hello! I need a spare part for theta S specifically motherboard, warranty ended … here in brazil does not support warranty expired, my brother resides in miami somewhere in the USA that sells part?

I don’t know of a place, but maybe you can search through eBay for a damaged THETA S. I sometimes see these for sale when the lens breaks due to unfortunate drops. Alternately, you could contact people that you know have broken lenses and ask them to make a deal.