Indication

• The indicator light is on but there is no display
• Make sure all power supplies are working properly (3.3V, 5V, etc.) - all checked and normal
• Check all important components such as the power IC, graphics IC, etc.
• Check hardware such as the display connector, including cables/flexibles

Fixing

• A corrupted BIOS IC needs to be re-flashed
• This can cause the laptop to shut down during an update, resulting in a corrupted BIOS file.