Developers use this port to read real-time signal data, change NV items, or perform low-level hardware testing. Modem Interface:

If you’ve ever tried to unbrick a phone, flash a new ROM, or interface with a Qualcomm-based LTE module, you’ve likely encountered a file named

: The most critical section, mapping specific USB Product IDs (PIDs) and Vendor IDs (VIDs)—typically —to the appropriate driver settings. [ControlFlags]