Walton Primo E3 Official flashtools, firmware & Drivers
Produce How to flash
1. Install driver.
2. Open Flash Tool
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3. Open Download Agent and select MTK_AllinOne_DA
4. Open scatter_loading and select scatter file
SW---> Primo_E3_V1.0.6_DCC MT6572_Android_scatter
5. Click Firmware->Upgrade and connect USB cable with mobile (mobile must be off)
6. Then start downloading..
7. When it shows Firmware Upgrade , then installation is completed.
Download Link: Click here to free download