If using a desktop PC, plug the cable directly into the back of the motherboard rather than the front panel ports.
Press 7 or F7 to choose "Disable driver signature enforcement."
USB 3.0 (blue ports) handles timing cycles differently than USB 2.0. Always use a black USB 2.0 port , preferably directly on the motherboard (rear ports on desktops).
Open (frequently bundled with the bypass tool). Select Install a device filter and click Next. Keep your device disconnected from the PC completely. Prepare your device: Power it off entirely. mtk bypass tool handshaking error fix
A popup must confirm the filter was successfully installed. 2. Perform a Complete Driver Clean Up
: Ensure you are using a high-quality data cable, not just a charging cable.
[INFO] Waiting for device... [INFO] Device found on COM port X [INFO] Sending handshake... [ERROR] Handshaking failed! [ERROR] DA sent but handshake not completed. If using a desktop PC, plug the cable
: In Device Manager , ensure your device appears as "MediaTek USB VCOM" under Ports (COM & LPT). If it shows as "Unknown Device" or "MTK USB Port" without a driver, download and install the MTK VCOM Driver manually.
This requires careful handling. Shorting the wrong points can permanently damage your device.
Modern USB 3.0 (blue ports) and USB 3.1 ports utilize different controller architectures that often conflict with old MediaTek bootloaders. Disconnect your phone. Plug your USB cable into a black-colored . Open (frequently bundled with the bypass tool)
Failing to hold the correct buttons while plugging in the USB cable.
Handshake failed, retrying... #44 - bkerler/mtkclient - GitHub
Note: On some newer devices, you may only need to hold or use an EDL/Test Point if the buttons are broken. 3. Switch to a USB 2.0 Port
The software hummed, the COM port changed color, and then... The Exploit Rhythm
MediaTek devices require specific drivers to communicate in BROM (Boot ROM) mode.