I still use a Samsung S5 because of it's two radios - I can talk on a phone call and browse/charge a credit card/etc. at the same time.

The Camera on it started acting flaky about two weeks ago and it stopped getting pictures stored intact. So, I finally found a new open source camera app and it works perfect again. The default camera app seems to be buggy.

I wonder if a system update was engineered to 'encourage' a phone upgrade...