They are the worst and pathetic company in India. All models have cheap hardware and generally faces defects within 3-4 months of purchase. If you got a chance to visit their service center then only god may help you to recover from trauma and frustration. If they repair one problem, second will arise automatically and you will never get rid of problems. in just 4 months my canvas A300 got problem and it stopped working. I have given it to service center on 26th August 2015. After so many pain and mental due to several followups and visits finally they replaced my handset with second hand knight 2 E741 on 23 November 2015 . I was very happy that finally my problems are solved. Ahh my bad luck that phone was too faulty. Call disconnects automatically after 2 rings. I felt cheated again. Now I am preparing all documents for a legal action against micro max.