Your Hisense U912 phone must be charged at least 70% or more. read the manual and instructions to flash the Firmware on your Hisense U912 Device. These are the instructions to download Flash or install Stock Firmware (ROM) on Hisense U912 (Original firmware) , If you searching for the Hisense U912 Transfer your contactos, photos, videos and sms messages from Hisense U912 into other phones or to an online storage to keep them securely backed up. How to unlock Hisense HS-U912, unlocking phone SIM card, unlock phone memory. To buy the game you need to follow the instructions after choosing to buyDownload the official Hisense U912 Stock ROM Firmware (Flash File) for and contains the Flash File, Flash Tool, USB Driver, and How-to Flash Manual.