I have two of these laptops, both with the exact same issue that you show in the video. First I have resoldered U8900. It worked for a while, but then the problem came back. On both laptops. Then I have ordered two U8900 chips from Aliexpress, and replaced them on the motherboards. Again they worked for a while, until they failed again, on both laptops. Does anyone know why these chips keep failing? Any solution?