yawor thanks for the answer, perhaps i misunderstand. by conecting usb keybords all the keys in the keybord work and shortcut keys work(alt+esc,win+esc) .they work on every screen except kodi. the problem is that alot of time kodi stack on exit so i usualy need to force the exit in order to get to the home screen. i have 2 set of keybords .one of them contain 2 kinds of home key. by contecting the one with the 2 keys of home with usb and pressing home key one of them do nothing (on both keybord) and the other one do the desire operation and send you back to the android home screen( this operation sign on sevral toolbar by like an envelope/home icon). i cant tech the flirc unit to do this key because it exit the flirc program and doesnt learn this key (while opening a new browser window on windows - i did try this shortcut combination but it didnt work). so supporting android should be with learning key that goes out to home screen even in kodi (diffrence from the alt+esc combination)