yes there is a translation
http://avic411.com/ind...tom-firmware-testmode/On the MRZ Russian there is a series and this is my personal translation, translated it to MRZ0o47, it rises crookedly to other models due to the fact that there is a difference in the menu, I also could not overcome the letter spacing, Cyrillic has it increased so some words are not spaced in lines and icons, but nevertheless it is much nicer to use when there are no hieroglyphs, but in Latin all the rules are obtained, you can also translate it into Russian and maybe you can even better.
Now the head hurts for the AVIC-RZ09 model, it enters the service menu by a combination of keys but the keys, copy, paste are not active. Maybe someone has a testmode key for this model of a tape recorder, the principle is clear to me, but alas, I can’t copy langdata files into it.