1. Remove the screws from the PCB position as shown below. 

2. Use slider or other tools to carefully separate the top case and bottom case.

3. Unplug the battery and then take out the PCB board. (Note: Please be careful of the toggles on the side when you disassemble the keyboard and reassemble it.)

 

FYI: If there is no problem with the keyboard, it is not recommended to try this at home as it can risk injuries and keyboard damage caused by the disassembling. Disassembling the K7 will invalidate the returns and exchanges guarantee.