原帖由： Reece

文本:

Remove the screen, take the hinge cover off, the wifi antenna, then check to make sure the backlight cable is not unplugged (this can happen when knocked).

Clean liquid (if present) from the logic board using 95%+ isopropyl. Check LCD connector and cable for burnt pins, check continuity on backlight fuse. If there is liquid inside, look for any burnt components in the area.

If you see liquid and a clean doesn't resolve it, you will need to solder on the required parts or take it somewhere who does logic board repairs.

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