This is a flash file loader for Qualcomm based smartphones and this is used for unbricking smartphone that comes with Qualcomm processor. Just click link below to download.
Qualcomm Flash Image Loader (QFIL) QPST 2.7.422
DOWNLOAD version 184.108.40.206
Windows xp , 7 , 8, 8.1 and 10 both 32 bit and 64 bits