Weird sounds in Lumia 730

[vk4421]

Suddenly, my Lumia 730 started weird sounds for 10 seconds and it restarted... Anyone have this problem...?

 

[xandros9]

If it doesn't become a common occurrence, I wouldn't be concerned about it.

Windows Phone, the phone's firmware, like other OSes, isn't perfect and there are bugs. I would consider it a once-in-a-while hiccup.