: Necessary for the PC to communicate with the phone in EDL mode.
The tool took exactly 11 minutes and 43 seconds. Finally: oneplus 3t unbrick tool
Use the method: Select "Install from USB" in recovery and run adb sideload .zip from your computer. Guide How to UNBRICK Oneplus 3T : Necessary for the PC to communicate with
: Open MsmDownloadTool V3.0.exe as an administrator. It should detect your device on one of the COM ports. Guide How to UNBRICK Oneplus 3T : Open MsmDownloadTool V3
: The OnePlus 3T is placed into this state by powering it down and then connecting it to a PC while holding the Volume Up button (or both Volume buttons simultaneously in some variants) [1, 4, 5].
This guide outlines how to use the official Qualcomm-based utility to restore your OnePlus 3T to its factory stock state.
: Press and hold the power button for at least 40 seconds to ensure the phone is completely off. Enter EDL Mode button for about 10 seconds.