It happens all the time on the OS/carrier/manufacturer side. I've personally seen settings reverted, software installed without notice, etc. It's a lot harder t

It happens all the time on the OS/carrier/manufacturer side. I've personally seen settings reverted, software installed without notice, etc. It's a lot harder to say what any random cell tower in range is able to do but the chipsets are closed source and have their own OS. Manufacturers and carriers have had it in their terms of service that they can do it. Here's what tmobile had in their ToS: We may remotely change software, systems, applications, features or programming on your Device without notice. These changes will modify your Device and may affect or erase data you have stored on your Device, the way you have programmed your Device, or the way you use your Device. You will not be able to use your Device during the installation of the changes, even for emergencies.