This requires disassembling the phone.
Cheap cables have high resistance (over 2 ohms). The handshake signal requires stable 1.8V. A bad cable drops voltage below 1.4V, causing handshake failure.
If you are using an older version of the , it might not support your specific chipset (like the newer Dimensity series).
: Ensure the bypass tool (e.g., MCT Bypass, UnlockTool, or SP Flash Tool) is running with Administrator privileges to access system USB ports.
The "Handshake Failed" error in MTK bypass tools typically occurs when the tool cannot establish a stable connection with the device's BROM (Boot ROM)