I've had my Eken M001 about 2 and half months now and generally pleased. Updated firmware to 1.7.4. Today when I switch on the machine, after a couple of minutes the screen freezes and nothing on the screen or the menu "push button" works. I hold down the power button f a few seconds to switch off and then switch back on but problem again appears after a few minutes. I also notice a new symbol has appeared to the right of the WiFi indicator - it looks like a "vibrate mode" indicator.Any idea what the problem is? Also, how do i get rid of the vibrate indicator.