A simply means this conversation never happened. The computer shouted, "Hello?" and the phone didn't answer, or the phone answered in a language the computer didn't understand (driver conflict).
Always verify the chipset using Device Manager > Details > Hardware Ids . Look for VID_0E8D (MediaTek’s Vendor ID). If you don't see that, you are troubleshooting the wrong problem. mtk bypass tool handshaking error
[INFO] Device connected: MediaTek USB Port (COM5) [INFO] Sending handshake (modified sequence)... [INFO] Handshake successful! [INFO] Bypassing SLA/DAA... [INFO] Exploit sent. Device ready for flash. A simply means this conversation never happened