The booking description was only the starting point
The iPad came in described as a backlight problem. Testing established that it had no visible image as well as no backlight, so diagnosis continued along the display circuit rather than relying on the original label.
Four open connector readings exposed a discontinuity
Each of the four backlight-related LCD connector pins showed OL. Following the circuit found a valid reading on one side of the filter but not the FPC side, narrowing the interruption to that component path.
The filter was repaired
The repair restored continuity through the affected path before reassembly. The closing footage shows a visible lock screen, directly returning the test to the original no-image complaint.
A dark iPad screen is not one diagnosis
A dark display can involve image generation, backlight production, connector damage, screen failure or power problems. A torch test and circuit measurements help distinguish those routes.

