"This device cannot start" in Device Manager.
Look for your device. It will typically appear with a yellow exclamation mark under named QHUSB_BULK , Qualcomm CDMA Technologies MSM , or Unknown Device . Step 3: Point Windows to the INF File qualcomm qcser.inf
. It contains the necessary configuration data to install the Qualcomm HS-USB Serial Gateway "This device cannot start" in Device Manager
: Used by service tools to read/write NV items, repair IMEI info, or monitor baseband network channels. Qualcomm NMEA Device : Handles GPS/GNSS data streaming. Qualcomm CDMA Technologies MSM
Installing this driver correctly is the most common hurdle. Follow these steps meticulously:
If you want, I can: