The official Qualcomm USB driver must be installed on the Windows PC to map the device to a Virtual COM Port (e.g., Qualcomm HS-USB Diagnostics 9008 or 901D).
Rebuild corrupted or missing IMEI numbers (Null/0049) to restore cellular connectivity. download link imei qcn tool v10
If you're dealing with specific device issues, I can help you find: Alternative tools (like QPST or QFIL) How to enable Diag Port on your phone The official Qualcomm USB driver must be installed
Here is a comprehensive, step-by-step guide to restoring your IMEI using QCN tools. download link imei qcn tool v10
Do you already have a for your exact device model?