Increase the brightness using the device’s brightness keys or control center
Open Display settings and raise the brightness slider
Turn off auto-brightness or adaptive brightness
Disable battery saver or low power mode
Check if night mode, blue light filter, or dark mode is reducing perceived brightness
Clean the screen to remove dirt or smudges
Make sure the display is not dimmed by overheating protection
Update display drivers or system software
Restart the device
If using an external monitor, adjust the monitor’s built-in brightness settings