Qualcomm flash to allow to flashing Stock rom , Firmware upgrade , Custom rom etc., This tool also allowed to backup qcn data file from working device , we can restore the qcn data any other same devices.
Tips for flashing Qualcomm flash tool.
First download a stock rom or firmware of your device. Download and install Qualcomm driver on your desktop or PC. Extract the firmware you downloaded, find the rawprogram xml and patch xml now we load it by the tool one by one, First load rawprogram xml then load patch xml then connect your device to Pc.
When Connecting your device press the boot key of your device , boot key is Volume up+ Volume down then click start.
If your device bootloader is unlocked you can also flash by fastboot mode. Fastboot mode flashing shoud be installed minimal adb and fastboot driver tool on your Pc , open file location paste your extracted firmware then flash by command one by one or use flash all dat file .
Commands for fastboot flashing
check your device by type (fastboot devices)
then continue each file by like this
if you flash boot.img type (fastboot flash boot boot.img)
if you flash persist.img type (fastboot flash persist persist.img)
if you flash system.img type (fastboot flash system system.img)
if you flash userdata.img type (fastboot flash userdata userdata.img)
all type img flash complete reboot your device by this command (fastboot reboot)
After flash some devices having network problem or unknown baseband persist so that we one erase the following partition
fastboot erase modem file then rewrite modem file or you enable the diag port mode of your device then write qcn file by qpst software download tool for some new user working with qualcomm flash tool and qpst download tool you need fast and reliable service need professional tool is best Umt tool .