Tecno W4 is Tecno’s first Android Marshmallow Smartphone with a 5.0 inch screen display and 4G LTE supported.
Some people who are not careful enough might get their phone bricked while trying to root it.
The good news is that the stock ROM is finally available and there is no need to panic If you get your phone bricked.
You can easily Flash it using Spflash tools.
Download TECNO W4 STOCK ROM [ Bulid version: W4-AW875A-A1-M-20160328] (1.18 GB)