MediaTek devices have a very short window (1-2 seconds) during boot where they are in PreLoader mode, ready to accept a handshake. If the software isn’t already waiting or if you plug the phone in too late, the device exits Meta Mode and boots normally, causing the COM port to disappear.
Before diving into the troubleshooting process, it's essential to understand what the Meta USB COM port is and its role in modem communication. The Meta USB COM port is a virtual serial port that allows your computer to communicate with a USB modem or other serial devices. This port is usually designated as a COM port (e.g., COM3, COM4, etc.) and is used for modem handshake, which is a critical process that establishes a connection between your computer and the modem. it cannot find the meta usb com port for modem handshake
: Use a direct USB 2.0 port on the motherboard (back of the PC) rather than a USB hub or front-panel port to ensure maximum power and stability. Check for Conflict in Device Manager MediaTek devices have a very short window (1-2