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go to settings and in that go to additional settings and there you will find region. change it to Russia. and then go to the updater app and check for a update. you will get it. and then again you change the region back to India after the update. and one more thing restart the phone again after the update maybe the volte won't be working. mine was not working so it restarted the phone and it working fine then. all the best.. and about the update it has made the phone very smooth to use and the fingerprint is working very nice.