I finally figured out how to shut down my smart phone with the voice help icon. I have to hold the volume and shut off button at the same time and select off. I bought this smart phone and a $5 a month data sim card for away from home emergency use together with my Ooma Telo free mobile call app. Although I pay $5 a month for a data sim card subscription for 400mb, I hardly use any of it, since I can make and receive calls over the internet for free with my Ooma Telo mobile app network, but I still need the data card for it to work, and I got to also pay for a $12 a month subscription to Ooma Telo for their premium service. I got rid of my cable internet and phone service, I was getting ripped off, I was paying over $200 a month for basic cable, and internet plus phone. I switched to a local provider called Hawaiian Tel fiberoptics. I pay around $35 a month for high-speed internet. Total for unlimited home and mobile phone, internet and data only sim card are around $52 a month. Furthermore, my sim card will automatically add more data to my account if I want to watch a lot of videos on YouTube away from home.