Instructions for firmware update in MacOS (Apple)
1. Connect the USB modem to one of your Macbook’s USB ports.
2. Copy the file Firmware_Update_21.329.63.01.103.zip to the desktop and double-click this file
to extract it.
3. Double-click on the extracted file Firmware_Update_21.329.63.01.103.app to launch the
firmware wizard.
4. Click on the ‘Start’ button to begin the update.