Walton Primo H4 Lollipop Official Firmware, Flashtool & Drivers Complete Guide
Walton Primo H4 Lollipop Version Stock Rom Firmware Download
How To update Android 5.1 Walton primo H4 How To Install Complete Tutorial
Flash Tool Instruction of WALTON PRIMO H4
Firmware Download Primo H4 : http://www.indishare.com/fnif02169ysj
1. Install driver
2. Open Flash Tool.
3. Open "scatter_loading" and select scatter file
(Primo H4 Firmware>Primo H4 software>MT6580_Android_scatter)
4. Click "Firmware Upgrade" then select "Download" and then connect USB cable with mobile (mobile must be off)
5. Then start "Downloading/Flashing Firmware"
6. When it shows "Download Ok" it means the installation/flashing firmware is completed.