Connect power: Firmly plug the power cable into the console's rear port and a working wall outlet.
Press the power button: Located on the front face (large circular button with the Xbox logo). Press and hold for ~1 second.
Wait for the green LED: The ring around the power button (or the jewel LED) will pulse green, then stay solid. Boot takes 15–30 seconds to the dashboard.
Troubleshooting
No light/power: Verify outlet with another device; check cable seating; try a known-good power supply.
Solid red light: Hardware error (overheating, GPU/CPU failure). Clean vents, ensure ventilation; if persistent, requires repair.
Flashing orange/green: Firmware update in progress—do not power off.
Original Xbox units (2001–2005) may boot slower than modern consoles. Patience is normal.