It sounds like you're having trouble with a modem connection, specifically with establishing a handshake due to a missing or inaccessible Meta USB COM port. Let's break down the problem and potential solutions:
In simple terms:
Your computer is trying to establish a low-level communication session with your phone’s modem processor (the part responsible for cellular functions). To do this, it needs a virtual COM port over USB. The error indicates that the software cannot detect or access that required COM port.
The causes fall into four categories: driver failure, timing issues, hardware signal conflicts, or incorrect boot flow. it cannot find the meta usb com port for modem handshake
Troubleshooting Missing META USB COM Ports for Modem Handshake The failure of a system to recognize the META USB COM port
extract and edit NVRAM database (DB) files directly from the target device It sounds like you're having trouble with a
Modem Configuration:
Most handshake failures happen because the PC doesn't recognize the device in its "Meta" state. Install VCOM Drivers: Ports (COM & LPT) – any new COM port
are you using (e.g., Maui Meta, SP Flash Tool, Miracle Box)? version of Windows are you running?