[CPAP] aDS2 Modem Setup

[Cayman44]

There’s no way to permanently disable the cellular modem from the outside. You can put it in airplane mode, but that turns off after a few days.

The modem is soldered onto the logic board, so you can’t remove it.

It might be possible to hobble it by clipping the soldered wires leading to the cellular antenna, or maybe less destructively by wrapping the ribbon antenna with a faraday cage material, but those require dismantling the machine.

The more detailed user manual that came with the DS2 stated that it keeps trying to call home until a good and complete data transfer is accomplished.  One would have to know or figure out how often the firmware retrys the data transfer.   And whether it goes back to sleep for a while after so many calls and then retrys again, or just gives up forever.  So I wonder if taking the antenna out of the loop accomplishes much.

Then again there are locations, even in the US, where there is no cell and no wifi - so good firmware programming would have added that to the mix with some sort of control for calling in any location with or without cell.  But then again it is just a computer and if calling out does not interfere with any other processes, it could be attempting to call home forever.  One would have to be very cellular savvy to set up a receiver and write a program to count how many tries and how often.  Might be easier to get a factory rep to answer this question.