Sir i purchased lenovo vibe k5 note but i it a two big problem ,first problem is Gallery app is not in the phone and second problem is Dolby Atmos .
My phone is not working at all due to screen overlay settings previously I've formatted my phone lot of times but I can't do it every now and then
Check Settings > Apps > All > Gallery, if it exists. I'm thinking you may have just accidentally hid it. Otherwise, install a gallery app from Google Play store. With regards Dolby Atmos, can you describe the problem so we can help?