I have Z69 box (2GB RAM 16GB ROM). I have tried to create bot SD and USB disk with this image. The box just don't boot any other way then to Android (I have tried all the methods from first post including toothpick). I am only able to get to "reboot recovery" from android terminal, but even I choose "update from SD card" and provide empty update.zip file, it don't do anything (it says file is empty).
I guess it is just all about the box and the way how to make it boot, not about version of LE or DTB file, isn't it? Any hints, please?