Bad news. I tried Kubrick in VM first. It stuck on waiting for device to enter fastboot mode.
Kubrick on physical machine doesn't work for me either. Although it boots, I get "missing java files" after that and my keyboard does not seem to be recognized.
BTW, the device is Wi-Fi only and has been put in airplane mode for quite some time (more than a month I guess, only turned on for downloading).. so maybe I have to check battery status more frequently..