The smart Android TV box you have is not Google TV and and as far as I know the Google TV Android OS ver. 4.2.2 will only run on Google TV devices. The various Google TV manufacturers of Google TV devices are responsible for providing operating system updates for their products, so far only LG has provided 4.2.2, others hopefully will follow in a month or two. Android 4.2.2 might run fine on your box but I have no idea where to find it.