Not sure this is possible, some will say it is. I have worked in the Cell phone industry, and it would definitely require a download, which should be traceable and reversible. This is one of the reasons I still don’t have a “smart phone”. I use a 3G “stick phone” that has no App capability. I use my computer for all computing functions. If you have noticed this “dispuption” check your ap listing under “Services”.
Cannot use 3g here by dec and no new devices permitted.