I try to put this fw : P76TI V4.02 2012/03/20 (from producer page) , but it's stuck on 68%, "!" appears on bootom bar (something wrong with USB device...) and tablet died ... Fortunately I managed to un-brick using V3.03 (which is older than I had ). If somebody know a newer (tested and working !) version of GB, please attach link !!! Thanks and kind regards !