IPhone 4s no funcional el Wi-Fi y se sobrecalienta?

IPhone 4s no funcional el Wi-Fi y se sobrecalienta?

There's a fix for Iphone 4s Wi-Fi.
Simply heat it with an hairdryer until it says "too hot".
Then turn it off and Wi-Fi starts working after it.

I know its weird, but I did the same thing to my iphone and it worked!