Comment by userbinator
Comment by userbinator 2 days ago
The days of GSM/3G were great. All you needed was a quad-band phone, of which plenty were available from numerous far-East companies but many based on the same or similar chipsets, and you'd have connectivity in the whole world.
The situation with LTE is far worse, with several dozen different bands and many opportunities to whitelist and effectively do user-agent discrimination. Even if you bought an unlocked device, if it doesn't have the bands in the area you want to use it and those your provider has cells for, you won't get any service.
a high-severity privilege escalation vulnerability
This is an extremely clear signal of how they think of the user --- as sheep to be corralled and controlled, not as individuals who have control over the devices they bought. The "security" propaganda they continue to spew has been going on for a while, long enough that increasingly more users are now aware of the truth.
To paraphrase the famous words of Linus: Google, fuck you!
Why is having so many bands a bad thing? Demand for data is so much higher now you need (ideally) hundreds of MHz of spectrum in dense areas. You need some way to partition that up as you can't just have one huge static block of spectrum per auction.
The issue with LTE isn't bands, it's the crappy way they have done VoLTE and also seemingly learnt nothing for VoNR.
They should have done something like GET volte.reserved/.well-known/volte-config (each carrier sets up their DNS to resolve volte.reserved to their ims server which provides config data to the phone). It would have given pretty much plug and play compatibility for all devices.
Instead the way it works is every phone has a (usually) hopelessly outdated lookup table of carriers and config files. Sort of works for Apple because they can push updates from one central place, but for Android it's a total mess.