How do I prevent CC cleaner from turning down the volume on my phone? At least that’s my suspicion is the cause. At the start of the day the volume on my phone is about 75%, but at some point in the day is reduced to 0% volume, I’m guessing this is some battery saving reason.
Not as far as I know, I think it’s more likely that the volume button is accidentally getting pressed in your pocket or bag.
Bluetooth devices can also sometimes change the volume by themselves, if you use any.