So, this we know: There have been way too many reports for folk like me still stuck on 11.2.5 or below, to upgrade our Series 7 devices to 11.3.1, without risking killing the phone's microphone with some weird hardware issue. This being the case, does anyone have any more information as to just why this happened? And, more importantly, is it still a risk (I assume it is)? Anyone here with a 7 or 7+ who skipped 11.3 but's on 11.4 beta? Wondering if Apple fixed 'the issue' and if 11.4 will be safe to upgrade to.