HOW TO USE QUALCOMM FLASH IMAGE LOADER (QFIL) GUIDE Note: Keep in mind that prior to flash check out the battery time. It should be 20-30% charged. Backup your device data including personal data before flashing or installing firmware on your device. Step 1: Download the latest version Qualcomm USB Driver and install it on your computer. Step 2: Download and extract Qualcomm Flash Image Loader (QFIL). You will find QFIL.exe file. You don’t need to install it on your computer. Step 3: Click on QFIL.exe to launch it. Step 4: Switch off your Qualcomm chipset based device. Press and hold Volume UP key and Connect the device with your PC.
