Handshake failed, retrying... #44 - bkerler/mtkclient - GitHub
Keep Device Manager open. You should see "MediaTek USB Port (COMXX)" appear without a yellow exclamation mark. If the exclamation mark is there, your drivers are not installed correctly.
Handshake failed, retrying... #44 - bkerler/mtkclient - GitHub
timeout /t 2 /nobreak mtkbypass.exe
Use the Filter Wizard in the LibUSB-win32 package to specifically target the "MediaTek USB Port" while the device is in its short-lived BROM state.