The process will take several minutes to flash the stock OxygenOS image. Wait until you see green text or a "Download Complete" message.
Open on your PC. Under "Ports," the device should appear as Qualcomm HS-USB QDLoader 9008 . Run the Tool : Open MsmDownloadTool V3.0.exe as an Administrator . oneplus 3t unbrick tool
. The tool will flash the factory firmware and reboot the device automatically upon completion. Common Troubleshooting Device Not Detected OnePlus 3T Unbrick Tool Guide Method A (Standard