Running window phone 8.1, and updated to window 10 mobile, A number of time updates delayed and when I updated it is too buggy. A trouble time with blu win jr lte. many times get heat.No service center found in ludhiana. When found, it is not a main service center, it is combined center with karbonn, intex and gionee. Ruin experienced while service. Got a typical handset with battery drain fasr .Hard to charge .takes too long time to charge. Totally disaster phone in all my phones experience.Wasted money, time and energy.Do not buy it.