I bought k3 note in december 2015. at the very beggining I was in love with this phone but after 3-4 months it started showing its colours. problems I faced were
It dosent support high graphics games.
It started to hang and I could even not use it for browsing.
Camera could crash every time I use to open.
One side of my screen could not work I mean touch could not work I had to press the screen tight to use.
Music player crashed.
Battery started to drain faster.
All I could do with this phone was sell it. I was lucky enough to sell it for 5000 rs on olx. o guys I suggest you to buy another phone instead of this you could go for red note 3 which come at the almost same price.