Is the driving method of your lcd panel (I suppose LVDS) and the drive of your controller board the same? ALL LVDS or ALL TTL RGB? Without it there is no hope at all. They are incompatible.
In the case, when your controller has pins like those: Tx1+, Tx1-, Tx2+, Tx2-.... then you have LVDS. In the case you have eg.: R0, R1, R2..R7, G0, G1...G7,B0, B1, B2.... you have TTL RGB drive.
BOTH the display and the controller pinout have to contain the same type of pins.
When the problem is in the cable, that is not a huge thing, resolder it according to the original arrangement.
Is it a 20 wires flatribbon cable?