Hello everyone,
this is not really a bug. But it took me some time to figure it out on my own.
Currently the files required to install LE to NAND of a wetek play are missing. One can get them by visiting github and download them. But it would be more convenient if they were already integrated to the realeased zip files.
It would make it easier if one could download one zip an copy the containing files to a sd card to install it.