Reballing, Here is how I fixed the blank screen when tx2000 laptop is switched on and the lights turn on but nothing is on the screen I switched the solder on the video chip from lead free with fresh new solder so it can last long. This problem has occured to 1000s of dell, sony and hp laptops from overheating graphics which causes the video chip to fail in the solder joints where they crack and lose strength. This repair is called reballing.
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HP Laptop video problem repair