power button is on the HP 510 Wireless keyboard?

[Anomoly1]

Could you please explain to me where the power button is on the HP 510 Wireless keyboard?  I have inserted batteries into it (correctly), and my PC recognises the wireless keyboard and wireless mouse as I have inserted the dongle into my PC.  The mouse works perfectly, but the keyboard doesn't do anything.  A diagram would be really useful as the box only explains how to put the batteries in and where the power light is.

[Max3Aj]

@Anomoly1, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
The HP 510 Wireless Keyboard does not have a separate physical power button. Instead, it is designed to power on automatically once the batteries are inserted and the dongle is connected to your PC. It enters a low-power sleep mode when idle to conserve battery, and should wake up when any key is pressed.

Since your mouse works but the keyboard doesn’t, try the following:

Check Battery Orientation:

• Ensure the batteries are inserted correctly (positive and negative ends aligned with the markings inside the compartment).

Confirm Battery Quality:

• Use fresh, high-quality alkaline batteries. Weak or old batteries may not provide enough power.

Re-seat the USB Dongle:

• Unplug and reinsert the wireless receiver (dongle) into a different USB port on your PC.

Test Keyboard Response:

• Press the Caps Lock or Num Lock key and check if the indicator light turns on. This confirms power and connectivity.

Re-pair the Keyboard:

• Some HP wireless keyboards have a connect button (usually inside the battery compartment). Press it and wait a few seconds to re-establish the connection.

Try on Another PC:

• This helps determine if the issue is with the keyboard or your current PC setup.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support