I purchased my BLU Life One X 4G LTE on Amazon.ca in Sept./16 and it worked fine for approximately a month until a couple weeks ago. Suddenly, I do not know when someone is calling my BLU nor when I receive a text or email as there is no ring or vibrate. I went to settings and my volumes are up to maximum on all and vibrate is at on. Callers to my BLU hear ringing at their end on their phone assuming my BLU is ringing but it's not nor is it vibrating. I cannot find a fix anywhere to this problem. HELP !!!!