Exclamation {Q} Android 4.2 "unfortunately live wallpaper picker has stopped"

Hello, i bought noname phone with Android 4.2 os. I tried to put live wallpaper, but it gives me error. In /system/app i copied files named "LiveWallpapers.apk,LiveWallpapersPicker.apk,Visua lizationWallpapers.apk and in lib cat, by default was copied libRS.so,librs_jni.so allready. After that if i choose live wallpaper, it shows error - unfortunately live wallpaper picker has stopped. How can i fix this?