HOW TO FLASH QUALCOMM ANDROIDS WITH QFIL

To flash your Qualcomm Android device, your will need to have drivers installed in your pc. You can get it from here.
Also, you will be needing a usb cord to connect your phone to pc.

Flashing procedure

• Download QFIL
• Extract and run QFIL.exe

• Once you run the QFIL.exe, you will see a dashboard like the one below.

• Now click on the 'Browse..' button to locate your firmware file in your computer. The file type flashable by this tool is a .mbn file.(You can equally select programmer type as either:ELF or Hex.

•  Select your firmware file to flash as shown below.

• After loading .mbn file, you will need to load XML. 

This has two options: 

rawprogram_unsparse_without_qcn.xml : Choosing this file, data will not be lost.
rawprogram_unsparse.xml : Will lose RF Calibration data, IMEI and WiFi/Bluetooth Address.

So, it'ts adviceable you select select rawprogram_unsparse_without_qcn.xml and then Select Patch0.xml.

• Next select the com port by clicking on the 'Select port' button.

• After that, click on the start button, switch of your device and connect to pc(you will need to press bootkey; vol+ and vol-) before connecting phone.
• Wait for the flashing to complete.
• And congrats!!!

For .mbn files for some Qualcomm Androids, check here