Qualcomm Diag Driver Portable Direct

Unlike standard USB drivers used for file transfers (MTP) or app debugging (ADB), the enables a virtual serial port (COM port). This port is used to transmit "DIAG" protocol data, a proprietary framework for collecting real-time logs, debugging radio subsystems, and performing low-level calibration. Key Functions and Use Cases

Since this is a utility driver rather than a consumer product you "use" directly, this review focuses on —the three things that matter most when you are trying to unbrick a phone. qualcomm diag driver