Aha
can just rename /system/xbin/su to /system/xbin/zu.
Upload test v1.3 with add of rename for Zidoo su binary(/system/xbin/su) to zu similar as they did on new players.
AppManager is not launcher are simple app drawer use on HiMedia players.
Yep, it's worked. Nothing close to Widevine L3, of course. I thought liboemcrypto repository adds some kind of DRM emulator, but it just lowers L1 to L3, so Netflix shows channels in SD on other devices with L1 license blocked. Unfortunately, not my case(
Waiting for Zidoo response to Widevine broblem (guess forever), or just recent L3 hack implementation (guess sometime) on my, suddenly, "retro" mediabox))
Thanks a lot for the help, not only from me but from all the
4pda.ru users!