REMOVE THE KEYCAPS WITH A KEYCAP PULLER
Do not pull forcibly, but gently wiggle side to side and slowly pull up using the keycap puller.
REMOVE THE SWITCHES WITH THE SWITCH PULLER
Hook the top and bottom of the switch at the base and squeeze the switch puller until the two plastic tabs on the side of the switch compress.
Gently pull and wiggle until it comes loose.
GENTLY PRESS NEW SWITCHES INTO PCB
Line up the switch pins with the sockets on the keyboard and gently press until the switch is secured.
PLUG IN THE KEYBOARD AND TEST TO SEE IF THE SWITCHES WORK
Before putting keycaps back on, check using a free online tester. If there are any that do not actuate, the pins may have bent during installation.