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Primo EF4 Firmware, Flashtool & Drivers

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Flash Tool Instruction


Software Download Link- http://www.mediafire.com/download/9274d0w4z03ib42/Primo_EF4_Firmware.rar

Step 1: Driver Installation

Install the drivers. 

Step 2: Open Flash Tool

Open the Flash Tool. Enter folder named "UPGRADEDOWNLOAD_R2.9.9015". Then enter file named "Bin". There you will see an icon named "UpgradeDownload.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_S007_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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15 hours ago, Do IT said:

Hi, I flashed it but in step 6 it's failed. And Phone doesn't open. Now what can i do??????????


Dear Sir,

Please contact your nearest service center if your device doesn't boot up. 

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