On this page, you will find the official link to download Lenovo A5800D 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 A5800D Stock Firmware (flash file)
File Name: Lenovo_A5800D_MT6752_S104_1504261730_V1_MP_CN.zip
File Size: 774 MB
How to Flash: Follow Tutorial