• Keyboard is not working
• Keyboard frequently stops working
• Before reconnecting your keyboard
• Reconnecting your keyboard

Keyboard is not working

If your keyboard isn't working, the problem is likely a lost connection. The connection between the K750 keyboard for Mac and the USB receiver can be lost for several reasons, such as:

• Low battery levels

• Moving the USB receiver from one USB port to another 2

• Moving the USB receiver to another computer 3

• Plugging the USB receiver into a USB hub or other unsupported device such as a KVM switch (NOTE: Your USB receiver must be plugged directly into your computer.)

• Using your wireless keyboard on metal surfaces

• Radio frequency (RF) interference from other wireless devices, such as:

  • Wireless speakers

  • Computer power supplies

  • Monitors

  • Cell phones

  • Garage door openers

Try to rule out these and other possible problems sources that might be affecting your keyboard.

Keyboard frequently stops working

If your keyboard frequently stops working and you keep having to reconnect it with the USB receiver, try these suggestions:

• Keep other electrical devices at least 8 inches (20 cm) away from the USB receiver

• Move the keyboard closer to the USB receiver

• Move the receiver to a different USB port on your computer

Before reconnecting your keyboard

Before you try to connect your K750 keyboard for Mac with the Unifying receiver again:

1. Check the battery level by powering it off and then back on using the ON/OFF switch in the upper right.

   

   To the left of the power switch, a LED indicator light will flash. If you see a:

   • Green light: Follow the reconnection process given below.

     

   • Red light: Charge the battery until the green light comes on before reconnecting the keyboard.

     

2. Make sure the USB receiver is directly and securely plugged into a working USB port on your computer.

3. Turn your computer on and follow the process below to reconnect your keyboard.

Reconnecting your keyboard

To reconnect your K750 keyboard for Mac:

1. Download the Logitech Unifying software from the Downloads Page.

2. Launch the Logitech Unifying Software (Application > Utilities > Logitech Unifying Software).

3. On the Welcome screen, click Next to continue.

   

4. Follow the on-screen instructions to turn your keyboard off and then back on.

   

5. When your keyboard is detected, you'll see a confirmation screen with a text field. Type a test message to make sure your keyboard is working.

   

6. After you've confirmed that the keyboard is working, select "Yes" and then click Next to continue.

7. Click Finish to exit the Logitech Unifying Software. Your K750 for Mac should now be connected.

Contact information

Need more help? See answer 25729 for how to contact Customer Care about this product.