I’ve switched some default apps in Android 9, but they’re occasionally resetting back to the preinstalled system options. How do I prevent it and why does it even happen?


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Some carrier SIM’s/eSIM’s install and force app defaults when inserted for the first time, are you sim swapping at all?
Wouldn’t be surprised if some carrier sims repeatedly update system defaults, because cellular carriers are shitbags like that
Fuckin crazy that I read the phrase “sim swapping” in your comment right as a podcast episode from almost a decade ago is describing someone being sim swapped without using that term.
I’m not sim-swapping at all, but I have recently placed my phone into faraday cage, maybe that was the trigger?
I can’t imagine that it would be related. Losing cell service doesn’t trigger the SIM OOTB (out of the box) setup process that would reset appdefaults.
Either your carrier is doing some dumb shit and force resetting defaults or the phone is just cursed lol