1. Remove 6 screws on the rear plate:
2. Remove the case:
3. Pull up the black locking arm on lens module:
4. Pull out the lens module:
5. Insert new lens module. Be sure golden finger is face down to the PCB. Push the black blocking arm back.
6. Put the module back on the position and tighten those 6 screws.
What is the size of the screws that hold the runcam 2 together?