1. The newly purchased notebook's built-in battery needs to be activated before it can be used. For the first time, please power the notebook with the standard charger in the package, and then press the power button to power on.The power button feels different from the ordinary button.
2. When first boot, use the standard charger for power supply.
3. Please reset the BIOS initial Settings (When MI LOGO appears after booting, press F2 to enter the BIOS, press F9 in the BIOS interface and then press F10 again to save and exit).
4. If the screen is still black and cannot be turned on, please go to the after-sale to test.
Does it help?