Connect your MiFi to your PC via a USB cable. In your PC’s Device Manager , ensure the "Mobile AT interface" is updated to "Marvell AT Interface". Running the Tool: Launch Marvell MifiTool V1.4.0.0.exe . Select the correct COM Port .
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You must first install the WTPTP Drivers and the LTE Generic MiFi Drivers . Connect your MiFi to your PC via a USB cable
Look for a success confirmation (often green Chinese text or an "UNLOCK SUCCESS" message). Download Information Marvell Mifi Tool V1 40 0 Download