Bought Lenovo K4 note in January 2016. It ha lot of heating problem. It fell from my hand many a times, its screen glass is fine. However my phone all of sudden stopped functioning while in charging. Service stations are very far and few in Ahmedabad. Parts are not available so easily. They told me that mother board is not functioning and will cost Rs. 8500. overall bad experience with Lenovo k4 note.