If you have a Huasi R11 and you want to Install Stock Firmware ROM on Huasi R11. Here we will guide you to install official stock ROM on your Huasi R11. Download the required file to either upgrade or downgrade your Huasi R11. This tutorial in We used a tool (software). that known as SP Flash Tool which is very simple and easy. You can just flash the firmware on Huasi R11 using the Smartphone Flash Tool. Follow the tutorial steps to flash the firmware on Huasi R11.