"Now your PC sees it as a generic Qualcomm port, not a modem. Open Device Manager. You should see 'ZTE Diagnostic Port' or 'Qualcomm HS-USB.'"
"Sounds like corrupted firmware," Jordan said. "The MF833V is a solid Qualcomm-based stick, but a sudden power loss or bad ejection can scramble its bootloader. It's not dead—it's just forgotten how to talk."
Jordan walked Alex through the process—one that applies to many ZTE USB modems:
The Day the Dongle Went Dark
