Look at the MsmDownloadTool interface; it should now display "Connected" next to the matching COM port. Click the button in the top left corner of the tool.
Requires proper Qualcomm USB drivers installed on a Windows PC to recognize the device port. Common Use Cases Fixing "Diagnostic Port Not Found" errors during flashing. Rolling back to an older version of OxygenOS or Realme UI. msmdownloadtool v1.8.6
Disconnect the device; it will automatically reboot into the freshly flashed system. Common Error Troubleshooting Error Code / Symptom Likely Cause Missing or corrupted Qualcomm drivers. Reinstall drivers and reboot your PC. "Sahara Communication Failed" Bad USB connection or wrong firmware version. Swap USB ports, use a USB 2.0 port, or restart the tool. Stuck at 99% Corrupted system partition or damaged storage. Restart the process or verify the firmware integrity. "Login Timeout" Missing bypass tool or patch. Look at the MsmDownloadTool interface; it should now
Before attempting to use MSMDownloadTool v1.8.6, you must prepare your environment. Missing a step can prevent the tool from recognizing your device. 1. Hardware Requirements A functional Windows PC (Windows 10 or 11 recommended). An original or high-quality OEM USB data cable. Common Use Cases Fixing "Diagnostic Port Not Found"
Download the exact firmware package matching your specific phone model. How to Download and Install MSMDownloadTool v1.8.6