I also thought about it, but honored, that are not advised updated vozduhu.Do 4.2 is not rolled back, check, can complement the upgrade as it was at Lenovo.
Tried medium ART turn the camera on, the same story as in Dalvik. ART to the same crude, many applications are not loaded, or does not run.
The contact group Qumo found, there seems to speak most of the pleas klientov.Otpisalsya official predstavitelyu.Bolshe not yet thinking what and how.
By the way, the problem is in the Lenovo, but it reshili.Komu interesting for the overall development.
Tyk