A faulty cable lacking data lines (charge-only cable) will never produce a COM port. Similarly, USB 3.0 ports on some motherboards are incompatible with META mode; USB 2.0 ports are more reliable.
Many modems respond to a specific button sequence or timing: it cannot find the meta usb com port for modem handshake
A handshake is a mutual agreement between two devices on how to communicate. The "modem handshake" here refers to the initial signal between your PC’s flashing tool and the phone’s modem processor. Without this handshake, the tool cannot verify that the modem is ready to receive data. A faulty cable lacking data lines (charge-only cable)
When the software says "it cannot find the meta USB com port for modem handshake," it means the PC’s flashing tool scanned all available COM ports, found none that matched the expected signature of a MediaTek device in Meta Mode, and therefore aborted the connection. The "modem handshake" here refers to the initial