Flash Tool Instruction of WALTON PRIMO X4 pro
1. Install driver (Auto Driver Installer for win 7 and windows 8 driver is VCOM)
2. Open Flash Tool.
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3. Open scatter_loading and select scatter file
(Primo X4 pro Firmware>SoftwareàMT6755_Android_scatter)
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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.
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