The most frequent culprit is an unrecognized hardware profile. To bypass generic Windows drivers, you must explicitly bind the device to specialized MediaTek files.
Select and browse to your downloaded .inf file. 2. Verify Your Hardware Connection
Troubleshooting the "USB COM Port" error can be incredibly frustrating, especially when you are just trying to get your device connected. This error usually stems from a communication breakdown between your computer's operating system and the device's firmware. it cannot find the meta usb com port for modem handshake
META mode is not the same as normal Android USB debugging. To enter META mode manually:
if possible, as some older MTK tools struggle with the high-speed handshakes of USB 3.0/3.1 ports. Featured Tool: Modem META (Maui META) Modem META Tool The most frequent culprit is an unrecognized hardware
Connecting the device too early or too late during the software's listening window.
This is a specific and technical issue. When you say you for a modem handshake, you’re likely working with a Qualcomm-based device (often in embedded systems, routers, or mobile broadband modems) where the “Meta” mode is a low-level diagnostic mode (sometimes called Meta Mode , Qualcomm Diagnostics Mode , or QCDM ). The COM port is essential for sending AT commands, NV item reads/writes, or performing a handshake for firmware recovery or IMEI repair. META mode is not the same as normal Android USB debugging
A temporary diagnostic state used for hardware testing, IMEI repair, and NVRAM editing.
Usually, it is Volume Down + USB , but sometimes it is Volume Up + USB or both volume buttons.