Hello, I have a problem with the version of Android 4.3 Jelly Bean to be used with the Quad Udoo. Once downloaded you can not unzip it using WinRar program which one you recommend 7zip. it is reported that the corrupt file and in the first case, while in the second addiritura are told that the disk has enough space, I used an external HD clean. I did run it to friends and they got the same result. what should I do?