Video Adapter Replacement CaseA customer reported that the image on their laptop screen was flickering intermittently and sometimes went completely black. At first, the issue occurred only after the device had been running for more than an hour, but over time it began to appear within minutes of startup. The customer also noticed random horizontal lines and occasional color distortion when watching videos or running graphic‑intensive applications.Initial troubleshooting steps were performed remotely. The display driver was updated to the latest version, and the operating system was fully patched. Power settings were adjusted to ensure the device was running at maximum performance when plugged in. The problem persisted. The customer was then guided through basic hardware checks: connecting an external monitor, reseating the memory modules, and checking for visible damage to ports or the display hinge area.When the laptop was connected to an external monitor, the same flickering and black‑screen behavior appeared on the external display. This indicated that the problem was unlikely to be caused by the built‑in screen or internal display cable. Instead, it suggested a fault with the video adapter or related components on the system board. Hardware diagnostics were then run using the built‑in test tools. The test reported errors related to the graphics subsystem, confirming a hardware failure rather than a software or driver issue.Because the video adapter in this model is integrated and not user‑replaceable, the device needed to be serviced by an authorized repair center. A service ticket was created, and the customer was instructed on how to back up important data before sending in the device, as storage components can sometimes be replaced or reimaged during repair. Shipping materials and instructions were provided, and the device was sent to the service facility.Upon arrival, technicians verified the reported symptoms and repeated the diagnostic tests. The same graphics errors were logged. Visual inspection of the motherboard showed no obvious physical damage, but thermal imaging during stress testing revealed abnormal heat patterns around the graphics chipset area. Based on the diagnostic results and thermal data, the decision was made to replace the system board, which included the integrated video adapter.The faulty board was removed, and a new board of the same specification was installed. Thermal compound and cooling components were cleaned and reapplied to ensure proper heat dissipation. After reassembly, the laptop underwent extended stress testing with graphics‑intensive benchmarks and continuous video playback. No flickering, black screens, or artifacts appeared. The external monitor test also passed without issue.The operating system and drivers were updated again to ensure compatibility with the new hardware, and a final full hardware diagnostic was completed successfully. The customer’s storage drive was reinstalled, preserving user data as requested. The device was then cleaned, packaged, and shipped back.After receiving the repaired laptop, the customer confirmed that the display functioned normally, with no further flickering or blackouts. They were able to resume their usual work and multimedia tasks without interruption. The case was closed after a brief monitoring period, during which no additional video‑related incidents were reported.