Xiaomi phones with MTK processors (Redmi Note 8 Pro, Redmi 9, Redmi 10C) are notorious for this error. Here is the specific workflow for these:
Follow these troubleshooting steps in order to resolve the handshake failure. 1. Install the Correct MTK Drivers mtk bypass tool handshaking error fix
When the handshake fails, MTK Bypass Tool prints a code. Here is what they mean: Xiaomi phones with MTK processors (Redmi Note 8