KV K3 Firmware Flash File
How to Flash
Download and install SPD USB Mobile drivers
Download Flash File From Link and extract it
Open Infinity Cm2 or any supported box / Dongle.
Select Correct Mobile CPU type From Setup and Choose flash file.
Turn off the Mobile, remove the battery.
Connect the Cellphone with USB data cable through Computer and insert Mobile battery again.
Press and hold Mobile Boot Key
Click on flash & then wait for the complete flash
Complete of Flash remove USB data cable and power on the device.
Enjoy it has done.
Note: Please make a back up of your device before install or update Flashing File.