After you reconnect everything, start it up and using a flashlight resting on the display at a sharp angle do you see a faint image of your desktop and icons?
If you do then the displays backlight circuit needs repairs, otherwise you will need a new display assembly.
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If your system has a warranty, I would lrt them fix it.
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If your system has a warranty, I would let them fix it.
After you reconnect everything, start it up and using a flashlight resting on the display at a sharp angle do you see a faint image of your desktop and icons?
If you do then the displays backlight circuit needs repairs, otherwise you will need a new display assembly.
If your system has a warranty, I would lrt them fix it.