Graupner USA www.graupnerusa.com 2349 miles from you in United States, CA, San Diego Joined Oct 2013 1,248 Posts Dtd: 6-1-20015 It fixes a problem with the Mikrokopter voice file and also fixes the failsafe which under certain situations would "safe" TX settings with an active RX link... We will post it later this week on the US site. Meanwhile, there is also a newer firmware version 1.041 for the mz-18/mz-24 radios availabel from site. FYI: I tried to up load it but it said too big. It can be found here: http://www.rcgroups.com/forums/showthread.php?t=1330285&page=211