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by freeone3000
2050 days ago
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Because they're the ones who push updates over the cell network. Comcast absolutely controls what software you run on your modem. You can update "out of band" manually, at least on recent Android Pixel phones. Any other manufacturer could also make their updates public, but since installing the one not for your carrier band makes the phone unusable as a phone, it's not likely to be common. |
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The same applies to unlocked phones. The service provider has 0 control over what I am running on that phone, and they don't control the updates (the OEM does), but as long as the baseband firmware complies with established standards, the phone will work. This was mandated by law some years back in the US and I am certain it's been the case in the EU for longer.
What you seem to be referring to is telco customized phones (subsidized ones), and in those cases you'd be correct.