GREAT tHANK !!

I tell you, several months ago I have a ls431p laptop without schematic or boardview only photos. Originally it came with a problem from KBC (nuvoton NPCE985PA0DX) since they broke the charger input and surely 20v entered through the PID line. I replaced it with a new one ordered from aliexpress, at first it turned on and showed video for a moment then I turned it off and it failed again and it did not want to turn on anymore. I have already changed it with this 5 times but the same problem continues, although on the 3rd or 4th time it turned on again but without video.
Another is that...

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Thank u bro!

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