What is the mysterious beeping on my phone?

my phone has an annoying four beep notification on the charger off the charger at night and all day long and its driving me crazy??? I've turned all the sound off on All Apps and phone and it still happens.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by hkoss
2 hours ago
Last post by gsauer
4 hours ago
Last post by ocormier
4 hours ago
Last post by anais73
30 minutes ago
Last post by arnoldo04
2 hours ago
Last post by rokuneva
32 minutes ago
taskbar icons
Started by pmante
Last post by henri.stehr
1 hour ago