Press and hold the keys, then connect the USB cable to the PC.
How to Fix the MTK Bypass Tool Handshaking Error: A Complete Troubleshooting Guide
The most frequent culprit is an incorrect or missing MTK USB VCOM or LibUSB filter driver. mtk bypass tool handshaking error
: Use LibUSB-Win320;418; or Filter Wizard to "Filter" the MediaTek USB Port 0;465;. You must catch the device in the device manager during the brief 2-3 second window it appears after plugging it in. Hardware & Connection Issues
✅ A common cause of USBTimeoutError is a response time that exceeds the tool's default threshold. You can adjust this by modifying the timeout parameter in src/config.py to a larger value, such as 8000ms (8 seconds). Press and hold the keys, then connect the
Ensure the device is 100% powered off. If it is stuck in a boot loop, let the battery drain or disconnect the battery physically if possible. Hold simultaneously. Insert the USB cable while continuing to hold the keys.
Ensure you have the latest version of the LibUSB driver filter installer. You must catch the device in the device
You may need to use a specialized driver installation tool to switch the driver to the correct COM port. Troubleshooting Checklist Issue Component Action Required Drivers Reinstall LibUsb Filter Drivers & MTK VCOM Drivers [0]. Cable Switch to a high-quality data cable. Timing Click "Bypass" first, then plug in the phone [0]. Device State Ensure the phone is completely powered off. Software Use the latest version of the MTK Bypass Tool [0]. Conclusion
✅ A faulty USB connection is a leading cause of timeouts. Always connect your device directly to a USB 2.0 or 3.0 port on the back of your PC (avoid front ports or hubs). If possible, use a high-quality USB data cable.
[2025-03-20 12:34:56] Waiting for device... [2025-03-20 12:35:01] Device found at COM5 [2025-03-20 12:35:01] Sending handshake... [2025-03-20 12:35:03] ERROR: Handshake failed - no ACK received [2025-03-20 12:35:03] Bypass aborted