Hi, There are some problems with my Cube U30GT (H) model. 1. The wifi is acting very erratic. Sometime it works properly, sometimes it just refuse to be found by Android. The 'Turning on Wifi Device' would be permanently on. 2. I wanted to reset the system so I can flash the firmware to v1.06 Jelly bean. However, the "Volume Up + Power on" buttons combination don't work. If I do that, the tablet will be permanently black and I have to wait for about 30 minutes before I can even turn it on again. The Rockchip flasher is unable to sense the tablet as being ready to be flashed. Anyone has similar problems and found a solution to it?