if i put it to a freezer for a few minutes then I can boot it up, the it gets warm and shut down on its own in about 1 minute. I do have a heat gun, never got

if i put it to a freezer for a few minutes then I can boot it up, the it gets warm and shut down on its own in about 1 minute. I do have a heat gun, never got a time to pry open the case and try that fix.