These are the instructions on how to use GNQC DownLoad Tool to flash stock firmware on any Android Device (Qualcomm Based).
Requirements: Your Android device should have at least 20-30 percent of battery to perform the Flashing Process.
Step 1: Download and extract GNQC DownLoad Tool and Driver. After Extracting you will be able to see the following files:
Step 2: Install the USB Drivers.
Step 3: Download and extract the Stock Rom that you want to Flash on your Android Device.
Step 4: Now, Open GNQC_DownLoad.exe (you have extracted this in Step#1) on Your Computer.
Step 5: Once GNQC DownLoad Tool is launched, Click on BP Browse Button and locate the bp_image folder in the firmware you have downloaded in Step #3.
Step 6: Now, Click on the AP Browse Button and add the Firmware Folder.
Step 7: Now Select WBW8901 in the name path.
Step 8: Now, download will highlight automatically (ready to download).
Step 9: Now, Connect your Android Device to the Computer (make sure it is power off).
Step 10: Now, GNQC DownLoad Tool will begin flashing the firmware on your Android Device.
Step 11: Once Flashing is completed, you will be able to see Green Successful Status.
Step 11: Now, close GNQC DownLoad Tool and disconnect your Android Device from the computer.
Congratulations, Now your Android Device is successfully running the Stock Rom you have Downloaded.
[*] You can follow the above tutorial to flash all types of Qualcomm Firmwares.
[*] Unable to Choose Firmware Path: If you are not able to click on Choose Path Button in Step#7 then it means you have not connect your Qualcomm Based Android Device to the computer. Try to Connect it after installing the USB Drivers and also make sure your device is Power Off.
[*] Take Backup: Take a Phone backup before using the Smart Phone Upgrade Tool as because during the flashing process your personal data will be removed.