Can a washer fix the PS4 turns and then off issue?

Ok, so uncharted just coming out and I got my PS4 turn on and off issue. I live in &&^&^$^ nepal where repair shops are compelte trash( I took my PS4 there but they couldnnot fix it) I mean, i can fix my PS4 if I go somewhere in India but thats gonna be a !&&* of alot journey. I also contacted sony support but they are not helping me. U see this is what I feel like to live in my own &&^&^$^ country. I hate it. I am panicing so bad. But somewhere i heard washers could do it. Is it true? It will be a great idea to share a detailed info.

Thank you