Hello , freinds we all know about chinease phone lenovo , and one of their model k3note , in lenovo k3 note of the most important thing is if you update your software system then in your phone lot of problem were created , and im sure about lot of disturbance in your mind were create.and after updation you unable to download more app .and sd card is also not show in your storage option .and these type of so many problem .in lenovo k3 note.so plz frnds don’t buy dis phone.bye