please help me about my mainboard, I have problem, my screen when I turnon my lap-top is black, and all lights is on, I try 3 steps: 1: disconnect AC adapter, 2: remove batery, 3: hold power botton, until that I turn on my computter, but when I agian try turn on lap-top my display is black agian, from HP support tell me that I flesh bios, but after that agian didn't work, in authorized HP service told me then the mainboard didn't work, please help me about that
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