If your iPhone's sensors aren't working correctly, you may need to calibrate them. Here's how to calibrate an iPhone's brightness and motion sensors.

Shorten the sensor’s detection zone by adjusting the range dial. Start with the dial set to max and turn down until the range is correct. Also, brighten up the night with the best outdoor smart lights ...

To turn on the keyboard light on your Mac computer, press the F6 key, or set it to turn on automatically. Here's how.