MT6451 Display will not work.
It sounds like your AC cord or the female plugin soldered onto the motherboard has gone bad and will no longer make a connection to charge the battery or power the laptop on.
You would have to try a new power cord to find out which is the problem. If the cord fixes it, then it was just a bad cord (as you said it gets very hot, this maybe a sign of a cheap cord that has gone defective).
If the cord is not to blame, then the female plugin is loose and there is little you can do unless your an expert at soldering.
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