Tried to flash my cube U18GT as I was getting a blank screen. Used Rock chip Batch tool and it looked like it flashed, got start screen but hung on no cube no fun. let it sit for about a couple of hours and same screen. Powered down and up and blank screen. Now when I go to the rock chip batch tool the tablet is found but the icon is blue instead of green, tried to restore and fails on download IDB fail. Not sure I have the tablet in restore mode. any suggestions would be appreciated.