Qualcomm Chipset can be flashed using QFIL tool. Stock ROM comes in MBN extension.
Qualcomm CPU Flashing is carried out in 2 phases:-
1- Driver Installation
2- Software Upgrade
1- Download and install Qualcomm driver. While installing the driver avoids using cable for successful installation.
2- After the installation, connect your device to PC using USB cable.
3- While connecting to PC, the device should be off and press the volume up & down as boot key.
4- If it marks Qualcomm port the driver has been successfully installed.
Qpst Tool v22.214.171.124: Download
Software Installation: How to flash MBN
1- Download the QFIL tool & driver.
2- Make sure your phone has the Power to support flash.
3- Now Run the QFIL tool
4- Click on the Browse button under Programmer path to select the MBN File.
5- As soon as the device MBN file is selected, Select Build will automatically pick the Update or Stock ROM.
6- Click on the Load XML, select the rawprogram_unsparse_without_qcn.xml and then pick Patch0.xml
Load XML comes with two option:
a- rawprogram_unsparse_without_qcn.XML: On choosing this file, data will not be lost.
b- rawprogram_unsparse.xml : Will lose RF Calibration data, IMEI and WiFi/Bluetooth Address.
7- Switch off the phone and connect it to PC by the pressing Volume up & down button.
8- Click on Select Port and choose the port.
9- Click on the Download button to start flashing.
10- Unplug the USB cable, when the Finish Download appears.
Note: Do not disconnect cable when Reset Phone or waiting for Reset Phone is in the process.
I hope this tutorial on how to flash MBN File using QFIL Tool work fine for you