See pictures attached to get the remote control LED location and buttons to use:
Remove the small USB RF remote receiver from Pi/Vero, keep the Pi/Vero powered.
Hold Home and OK button for around 5 seconds until the blue LED starts flashing.
(The blue LED might stop glowing once you release the buttons; that’s OK, the remote control is still in pairing mode.)
Plug in the USB receiver to the Pi/Vero and the LED should flash 3 times within some seconds, indicating successful pairing.
Just to be sure: Power off the Pi/Vero using the GUI and wait 2 minutes. Turn it back on. The remote should now work.