Windows often blocks the unsigned drivers required for META mode.
Click on your computer name at the top, then click > Add legacy hardware .
If you see "Unknown Device" under USB controllers, right-click it, select > Browse my computer > Let me pick from a list > Choose MediaTek Preloader USB VCOM Port . 4. Hardware and Connectivity Checks
Open ( Win + X > Device Manager ) to prepare for visual confirmation. 3. Correct the Connection and Power Sequence it cannot find the meta usb com port for modem handshake
Ensure the device is turned completely OFF before connecting.
Do not use "Auto detect" if the error persists. Manually set the port.
Hold down the key on your keyboard while clicking Restart in the Windows Start Menu. Windows often blocks the unsigned drivers required for
Press or F7 to select "Disable driver signature enforcement." After reboot, reinstall the VCOM drivers [2]. 5. Repair or Update USB Serial Drivers in Device Manager
If the phone gets stuck in a boot loop or a frozen black screen, it cannot handshake. Disconnect the battery physically (if possible) or hold the Power button for 15–20 seconds to completely kill residual power before trying again. Phase 4: Configure Software Timeout Settings
This error typically happens when desktop software—such as SP Flash Tool, Maui META, ModemMeta, Miracle Box, or CM2 Dongle—attempts to force the device into META mode but fails to establish a stable serial connection over USB. Correct the Connection and Power Sequence Ensure the
Modern MediaTek chips use secure boot options that disrupt standard META mode handshakes. Using a tool to filter the USB traffic often forces the connection to stay open.
If a port appears and disappears rapidly (e.g., "MediaTek Preloader USB VCOM"), this is normal behavior for MTK handshakes. You must ensure the service tool (like MAUI META) is already in "waiting" or "reconnect" mode before plugging in the device.
(crucial for Windows 10/11) to ensure the drivers install correctly.
Quick checklist to include when posting for help (copy-paste):
Watch . You should briefly see MediaTek Preloader USB VCOM or MTK USB Port appear under the Ports (COM & LPT) section before it shifts to the stable MediaTek USB META Port .