Qpst.2.7.496
Manufacturers use QPST for testing and validating devices before they are shipped to consumers.
Ensuring your Windows environment is ready—often requiring "Test Mode" for certain driver signatures to function. A Word of Caution qpst.2.7.496
You must install the latest Qualcomm HS-USB QDLoader 9008 drivers for your PC to recognize the phone. Windows PC: QPST is a Windows-only utility. Manufacturers use QPST for testing and validating devices