In order to transfer files from the M-Series Smart Glasses via USB, you will first need to change the USB mode in Settings to MTP (Media Transfer Protocol) mode. This can be accessed in Settings under Storage & USB, then with a long press on the forward button closest to the display to bring up the context menu. From there, select USB mode and choose the mode for ‘File transfers’ to enable MTP mode.
Once enabled, you will be able to navigate the filesystem on the M-Series Smart Glasses when plugged into a PC via USB as a standard USB storage device.
Please note that MTP mode will remain enabled only during the current USB session. If you disconnect the M-Series Smart Glasses from your PC or reboot the device, you will need to re-enable MTP mode. This is by design and is standard Android behavior for security reasons.