QPST is a set of tools from Qualcomm that are designed to service devices and change some important Qualcomm chipset parameters. These chipsets are installed in many smartphones and tablets made by Samsung, Huawei, Lenovo, ZTE, Nokia and other brands. Also, these chipsets serve as a "heart" for many modems, because Qualcomm is one of the largest players in the CDMA, 3G and 4G modem market.
QPST stands for Qualcomm Product Support Tools. Most often, the need to use this program is mentioned in the manuals for flashing firmware on various Android devices. The tools in this package are used for most service operations. For example, the QPST Configuration module allows you to select a COM port to work with the device, and QCNView opens the QCN backup files created by Software Download. EFS Explorer is a full-fledged file manager that helps to work with the contents of the device file system, including data such as the IMEI and network settings. Software Download is a handy flasher (it's the one you'll have to use for firmware most often), QFIL (Qualcomm Flash Image Loader) flashes firmware images and single partitions, and RF NV Item Manager is an NV memory manager. There are modules in it, the purpose of which is difficult to describe in one sentence. For example, Service Programming, which can be used to configure a variety of device settings, or the Roaming List Editor and Memory Debug Application. Each of the above described tools is quite independent and can work separately from the others.
We strongly recommend that you use QPST carefully and perform all operations in accordance with the manual. Remember that some of the tools in the kit are capable of turning your device into a "brick" when handled incorrectly. QPST is service software for manufacturers and repair centers without a public product page, and the Qualcomm USB driver must be installed so that the PC can detect the device.
QPST software lets users flash firmware, back up data and change crucial parameters on devices with Qualcomm chipsets, used in many smartphones and tablets.