Ok, I got the point now. But for the moment I can’t get the code name as none of the three solutions mentioned here works in my case. I should be able to give you the code name in some days, when I will receive the device.
So, if can resume what is said in the different forum, some people managed to make this rom work on gx290+ with a specific version of adb, but there is no waranty. Am I right ?