A few days ago – a weird square icon appeared in the middle of the top part of the screen on my BlackBerry. I knew that I’d pressed a button, but I couldn’t find it for the life of me. It would actually cover the call duration on the theme I’m using.
It got to a point where I started to scour the internet until I found the answer. While I’m at it – I’ve got to ask: Why is phone documentation so crap?
Anyway, it turned out that it is the call equalizer, which allows me to boost the bass or treble during a call depending on my mood. To turn it on or off simply press the ‘L’ button. This will toggle between those two and off.