On this page, you will find the official link to download Lenovo A390T 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 A390T Stock Firmware (flash file)
File Name: Lenovo_A390T_S125_130821_4.0.3.zip
File Size: 303 MB
How to Flash: Follow Tutorial