Regarding the 3 cameras here is a solution:
Pros:
- Works great
Limitations:
- two modes available: “front+camera 1×”, or 3 cameras: “1×+0.6×+2×”. In the 3 camera mode, the selfie (front) camera is not available in the camera application. One needs to toggle between the two modes.
- when toggling between modes, one needs to restart the camera application.
- After rebooting the phone, it will ask the PIN code on first use of the toggle.