If you have a itel A11 and you want to Install Stock Firmware ROM on itel A11. Here we will guide you to install official stock ROM on your itel A11. Download the required file to either upgrade or downgrade your itel A11. This tutorial in We used a tool (software) that known as Spreadtrum Upgrade Tool which is very simple and easy. You can just flash the firmware on itel A11 using the Smartphone Flash Tool. Follow the tutorial steps to flash the firmware on itel A11.