On this page, you will find the official link to download Lenovo A5500F Stock Firmware ROM (flash file) on your Computer. Firmware comes in a zip package, which contains Flash File, Flash Tool, Driver and How-to Manual.
Download Lenovo A5500F Stock Firmware (flash file)
File Name: Lenovo_A5500F_MT6582_000_013_140526_ROW.zip
File Size: 850 MB
How to Flash: Follow Tutorial