Many thanks to you mce2222 and to Hoernchen! Now owners of STB HY100 are ables to load AZBox adapted fw following detailed informations in http://hy100wiki.algasystems.net/wiki/doku.php/azbox_firmware and using new lzmaloader from mce2222 instead of the one in the wiki!
I will try soon and I will be back to you with my results!