Notification bar problem

When being rung no sound is played my tone is : flyme.
The ringer volume is set to full (15)
Even when I move the sound bar up in the settings its suppose to playback a test sound in which it doesnt.
There is a circle with a line through it at top of the notification bar, what does that mean? Is that my problem?
My ringer volume worked when I first got my mx5 and the crossed circle symbol wasn’t present at top. I can’t seem to get rid of the symbol and would like help getting rid of it. 0_1451138733002_S51226-135556.jpg

Moved topic: please post in the correct section and read the guideline!

Don’t know, firmware version?

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