I have been uaing this mobile from last one year.i am very honest to viewers is that now a dats nokia is not manufacturing a good quality mobiles at all.it is having lots of defect .regarding the sound quality and also the battery backup is too bad not at all good to use.its lens is getting day by day fade something like moisture.when I have gone through the service center they asked me for service one time and I have done it but still I am not getting a good quality sound or other as nokia announces.Its not a good smartphone in this range.