The purpose of the modular private smartphone is to be:
● Modular: If one part breaks or needs to be upgraded it will be easy to change minimizing waste.
● Private: The GSM/data module will not have access to the smartphone files or documents, this is because a m2m module will be used. The majority of smartphones have the GSM/data module connected to the cpu allowing to have leakage of information if the module is compromised.
The m2m module will only receive/send data when the software instructs it to do so, it will be connected to the GPIO pins of the raspberry pi.