Q: Cannot pair BT keyboard after batteries replacement!

When your Apple wireless keyboard, mouse, or trackpad is turned on, the indicator light flashes twice in succession, pauses, and then repeats (blink-blink-pause, blink-blink-pause). This means the keyboard, mouse, or trackpad is “discoverable” by your Mac, and you can pair your Mac with it. After three minutes, the indicator light turns off. The keyboard, mouse, or trackpad is still on, but it is no longer discoverable. To make it discoverable again, turn it off, then turn it back on.

When the wireless keyboard, mouse, or trackpad connects with your Mac, the indicator light illuminates steadily for 3 seconds before it turns off. This indicates that the device has successfully paired with your Mac.

While your Apple Magic Mouse is connected to your Mac, the indicator light blinks at a regular interval. It might blink fast or slow, but in all cases, a regular blinking pattern means the mouse is connected to your Mac and is operating properly. If you use an Apple wireless Mighty Mouse, the indicator light illuminates continuously when it is connected to your Mac and working properly. The indicator light on the Apple wireless keyboard doesn’t blink.