Flash Tool Instruction of WALTON Primo H6+ Download Link- http://www.mediafire.com/file/5ccicdna9gl6jxb/Primo_H6+_Firmware.zip (Link Updated) 1. Install driver 2. Open Flash Tool. 3. Open scatter_loading and select scatter file(Primo H6+ Firmware>SoftwareàMT6737M_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.