Once you have verified that every switch pin is poking out through the circuit board, it is time to solder the keyboard together. Make sure to double check that every switch is correct, as it is a much larger hassle to correct a mistake once you’ve begun!
If you have an IC60 with through-hole LEDs, make sure to solder them with the long pin (anode) going to the square pad. Ensure that this is the case for the dual position switch locations as well, even if you have to flip the LED around.
Note: This image is from a previous Infinity Keyboard and the switches around the USB port are upside down. Current Infinity 60% keyboards are all oriented the same way.