iPhone 12 Pro: alarm on screen, but not sounding
Hello,
In the last couple of months, I've had two occurrences where my alarms on my iPhone 12 did not sound. When I checked my phone, the alarm shows on the screen with the 'Snooze' and 'Dismiss' buttons, but there is no sound and no vibration. As I start work at 4 in the morning, this is quite a big issue for me!
When I go to bed, I play an audiobook on Audible with a 30 minute sleep timer, and also run the Sleep Cycle app in the background with the screen locked. On both occasions when my alarm failed to sound, when I went to stop Sleep Cycle there was an error message saying the app could not access the phone's microphone. This error message apparently occurred some time during the night, since I do not get it when I start the app's sleep monitoring.
I am running iOS 14.2.
Any suggestions welcomed. Thank you!
iPhone 12 Pro, iOS 14