1: in order to remove the PCB board including display, there are 4 Phillips screws underneath the housing that you need to unscrew. Once this is done, open the case pulling it very gently since the connectors sometimes are mushed inside the stem.
2: Make sure the power is off for this step. Unplug PCB board connectors. Wires are tight so please handle them carefully.
3: Remove pcb board screws using an allen wrench. Then remove the pcb
4: Once you successfully removed the pcb board, you can plug the new one and reverse the process.
