LG G5 modules: taking a closer look
The first module is the CAM Plus. It is a bulky piece of hardware, which makes it easier for the user to handle the phone while shooting, and also houses an extra 1,200 mAh battery. On the sides of the module, we have analog controllers for the camera – a circular zoom jog for precise zooming, a 2-step shutter key, and a separate button for video recording.
The way the modules work is pretty straightforward. First, you unlatch the bottom bezel of the phone and pull it out. It comes out with the battery attached to it, so yes, you have to do this with the phone off. Then, remove the battery from the stock module and attach it to whichever one you will be using. Re-insert the new module and you are good to go.
Of course, if you do this often, it would probably make sense to invest in an extra battery, which you can keep on your alternate module at all times to shorten switch times.
Things that are NOT allowed: