ASUS ExpertBook B1402CGA Screen Remains Black

Incorrect display settings may cause the screen to appear black. Increase screen brightness using the keyboard brightness controls. Press Windows + P to open display projection settings. Select PC screen only if another display was previously connected. Restart the laptop and check whether the screen works.

Outdated graphics drivers may cause flickering or distorted images. Connect an external monitor if the laptop screen remains black. Open Device Manager and expand Display adapters. Locate the installed graphics adapter. Download compatible graphics drivers from ASUS Support. Install the drivers and restart the laptop.

A loose display cable may interrupt communication with the screen. Connect an external monitor to test the laptop's video output. A working external monitor may indicate an internal display problem. Shut down the laptop and disconnect external power. Follow ASUS service instructions before accessing internal display connections. Inspect the cable and reconnect it if necessary.

A damaged display assembly may cause black screens or distorted images. Inspect the screen for cracks or visible damage. Test the laptop using an external monitor. Check display settings and drivers before replacing hardware. Replace the display assembly if testing confirms a hardware failure. Follow the ASUS ExpertBook B1402CGA Display Assembly Replacement Guide.