I have an Acer Aspire 4220,when i switch it on it turns on but the screen is black. I connected it to a monitor through VGA cable and it works on the external monitor but not in the laptop screen. I have already check the RAM and even disassembled it but it still doesn't work. so I connected it to external monitor and check the BIOS press F9 for load setup default and it works, the screen is already working. But my problem is when I turned it on again, the screen will again appears nothing so I have to check the bios again and it works again and appears nothing when I turn it on. Just repeating the process..
what will be the best solution to this problem?
thanks
what will be the best solution to this problem?
thanks