Hello my name is ketan chauhan
I say just about of batter and wallpaper changing
Wallpaper changing : - If you want to change the wallpaper than you long click in screen for changing the wallpaper it shows four options you want to change the wallpaper you click on wallpaper option and not shows the wallpaper it show the error unfortunately , Lenovo launcher has stoped and show two option ok or try to solve if you click on ok than nothing will happed and if you click on try to solve than show option exit or clear data if you clear the data after this not changing the wallpaper its bad performance
Batter backup: - Batter backup is not good if you using the internet after some time your batter is low .??