My understanding is that CSFB works by signalling the LTE/4G handset to handover to the 3G or 2G network and continue the call setup on there. If carriers have shut down their 2G and 3G networks then there is nothing providing Circuit Switched services to fall back to.
Yes it’s def how it worked on the “backend” but i don’t remember what it did on the channel layer tbh. Maybe there’s a compatibility mode in enodeb. Also all three major providers have def shutdown their 2g/3g equipment as of last year
I mean that's exactly the point of phone cameras, each year phone companies are pushing the edge to get the best on board image processing to do more and more with the limited camera hardware options, it would be naive to expect commercial level control (composing) on the camera and expect it to sell to masses.
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