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Primo EF4+ Firmware, Flashtool & Drivers

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Flash Tool Instruction

Software Download Link-  http://www.mediafire.com/download/so197vj4bkbhsyo/Primo_EF4%2B_Firmware.rar

Step 1: Driver Installation

Install the drivers. 

Step 2: Open Flash Tool

Open the Flash Tool. Enter folder named "ResearchDownload_R3.15.4901". Then enter file named "Bin". There you will see an icon named "ResearchDownload.exe"

You will see this window:


Step 3: Pac Loading

a. Click "Load Packet". New window will appear.

b. Enter "Primo EF4+ Firmware" folder and select "Primo_EF4+_S008_05092016.pac" file

c. Click "Open"


Step 4: Firmware Upgrade {Click "Start"}


Step 5: Connect The Handset

After clicking the "Start", press the volume down key of your handset, and connect it to your computer with USB cable. Remember: Before connecting the handset with your computer, you must turn it off. Also notice that the battery has to be kept inserted.Flash operation will begin, you will see this window:


Step 6: Notification

There will appear "Passed". This means it is successful.


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