I keep seeing the threads the carriers must allow an OTA update.
This makes no sense to me. It's a DUAL SIM phone. I and, I'd imagine, most other people use SIMs from different carriers. What if one carrier approves it and the other doesn't? Which SIM dominates? Why does it even matter? How often does an OS update directly affect cellular operation? Why does it even matter what one carrier decides? It's my phone, not theirs. I travel and use multiple carriers so my main carrier can veto an update? Really?