Check the power cable for damage
Reseat the power cable firmly in the console and wall outlet
Try a different wall outlet
Plug the console directly into the wall, not a power strip
Test with a known working power cable
Unplug the console for 10 minutes, then plug it back in
Hold the power button for 10 seconds to force a shutdown
Remove any external USB devices
Ensure the console has proper ventilation
Clean dust from the vents
Check the power supply light on the console
Try a different TV and HDMI cable
Perform a power cycle on the console
Reset the console power settings if it turns on
Update the console system software
Factory reset the console if it boots but keeps failing
Contact Xbox Support if the console still will not power on