I replaced the physically damaged internal display in an ASUS VivoBook TP3604VA running Windows 11. The replacement assembly initially showed an image, although the camera and microphone were not working at first. During the first restart, we tried pressing F2 to enter the BIOS/UEFI, and the internal screen went black during startup. We did not intentionally change any BIOS settings.
Since then, the internal display has remained completely black, including before Windows loads, with no ASUS logo visible. An HDMI monitor works normally, and the internal touchscreen, camera, and microphone still respond. Windows Device Manager only shows the external monitor; two hidden Generic Monitor entries and a hidden MyASUS_Splendid entry are greyed out.
I have tried shutting down fully with the external monitor and USB devices disconnected, performing a power-button reset, and booting into Safe Mode. None of these restored the internal image. Installing the latest graphics driver also made no difference. BitLocker requested the recovery key when entering the recovery environment, but that process completed normally.
The exact replacement panel part number and cable compatibility have not yet been independently confirmed, and the laptop has not been reopened since the failure. Could this be a driver, firmware, BIOS-initialization, lid-sensor, cable, or panel problem? Since touch and the other components still work, what should be checked next before opening the laptop again?
4 Answers
The timing after the restart may be coincidence. A firmware or driver update could explain a failure that begins when Windows loads, but it would not normally remove the logo and firmware image as well. Since the replacement worked initially, compatibility or a connection that shifted during use is still possible. Before powering the laptop with the cover open, disconnect the battery if the repair guide requires it and have someone experienced verify the eDP connector, cable routing through the hinge, panel voltage, and exact replacement part.
Because the screen is black even during startup and there is no ASUS logo, this is unlikely to be a normal Windows display-driver problem. Safe Mode and a graphics-driver reinstall would usually affect Windows only, not the pre-boot image. The most useful next step is to verify the exact panel part number and inspect the display cable and motherboard connector. A cable can be partly connected or damaged in a way that leaves the touch, camera, and microphone working while the video lanes fail.
You can still do a few non-invasive checks: use the external display to review Windows Update history, roll back or reinstall the ASUS/Intel graphics package, and enter the firmware setup while watching the HDMI monitor. If the internal panel is absent in the firmware setup as well, Windows is not the cause. Also check whether the internal display appears in Windows display settings or with a hardware-information utility, but do not treat greyed-out monitor entries as proof that the panel is currently detected.
Working touch input does not prove that the LCD video path is healthy. The touchscreen digitizer commonly uses a separate USB or I2C connection, while the image travels through different eDP lines in the display cable. The same is true of the camera and microphone wiring in the hinge assembly. A damaged cable, loose connector, incompatible panel, or failed display power/backlight circuit could therefore produce exactly these symptoms.
That makes sense. The graphics driver was already reinstalled without any change, so checking the panel and cable compatibility is probably the next practical step.