When you buy a device from the market then you must know all the features and troubleshooting general problems. By knowing inside out of any device you can better use it. Amazon Fire Stick is also a device that is a product of Amazon Company. Amazon is a repudiated company in the market that gives better user experience to their customers but for that your device is regularly update. Fire TV also has an operating system called Fire OS which needs regular update for better functioning of the device. For Update, you can call Fire Stick Customer Service Number 1-877-943-5444.