Hi Papaprem, my phone makes the same buzzing sound when the backlight is on. Here's the ironic thing though, I have a watch pedometer with the same coral blue backlight as the Q - whenever I turn the watch light on, it makes the same buzzing sound as the Q. Weird... I also had a mini clock with the same blue backlight, and whenever I turned the light on, it would make the exact buzzing sound as my watch...and like the Q... |