Check the HDMI cable for damage and reconnect it firmly
Try a different HDMI cable
Use a different HDMI port on the TV or monitor
Make sure the TV or monitor is set to the correct input source
Power cycle the Xbox Series X by holding the power button for 10 seconds
Unplug the console and TV for 60 seconds, then plug them back in
Restart the TV or monitor
Disconnect any external storage devices, capture cards, or accessories
Boot the console in low-resolution mode by holding the power and eject buttons until the second startup chime
Change the display resolution after the console starts
Turn off HDR, VRR, or other advanced display settings
Test the console on a different TV or monitor
Update the Xbox system software if accessible
Reset display settings from the console settings if accessible
Perform a factory reset while keeping games and apps if needed
Check for overheating and ensure proper ventilation
Contact Xbox Support if the black screen persists