It may takes up to 10 minutes depend upon to file size and computer specification. Now, Click on the Start Button to begin the flashing process.BOOT_LOADER.HEX which comes with the firmware. Then, Cilck on Boot Image Browser button to load the loader file e.g.Now, click on the Phone Image Browse button to load the firmware (.hex extension file).If pc donot recognize your USB port then connect the device in EDL (Emergency Download) Mode. Connect the devices to the PC with help of USB cable.Now, Switch off your Qualcomm phone or tablet.Easiet way: Go to Start Menu in Windows taskbar and search for QPST Software Download. Open QPST Software Download Dialog Box.Download and install the latest version of QPST Tool.Download the firmware of Qualcomm Chipset.Make sure that you have download and install latest version of Qualcomm USB Driver on your computer or laptop.How To Flash Firmware On Qualcomm CPU Phone Using QPST Tool. Then, you will see this kind of windows dialog box which is as shown in below figure: Now, click on the "Starts Clients" in upper side of Ports tab.Go to " Ports" tab in order to see COM port is detected or not for your phone.Go to " C:\Program Files\Qualcomm\QPST\bin\" OR " C:\Program Files(x86)\Qualcomm\QPST\bin\" folder.
Download and extract the zip file and open QPST.exe to install, accept the license agreement and finished the installation process. It is non - portable application because you have to install it on your computer or laptop in order to launch it. QPST is a windows installable application for computer which allows you to flash Stock ROM/firmware on Qualcomm Smartphones and Tablets. QPST stands for Qualcomm Product Support Tools.
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