Most likely you have corrosion on the LVDS connection on the logic board or on the displays LVDS connection. This is quite common as both are a bit too exposed.
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Take a tight in focused picture of the logic board connector so we can see the solder joints you may need to replace the connector.
Most likely you have corrosion on the LVDS connection on the logic board or on the displays LVDS connection. This is quite common as both are a bit too exposed.