: Locate a trusted download link for Marvell_Mifi_Tool_V1.4.0.0.zip .

Ensure the host PC meets these structural conditions before flashing:

: A standard USB cable is used to connect the MiFi device to the PC. In some flashing scenarios, the battery must be removed during the initial connection. Administrator Access

Rewrites corrupt International Mobile Equipment Identity (IMEI) parameters.

Modifying firmware or IMEI settings can permanently "brick" your device if done incorrectly. Always back up your current configuration if possible and proceed with caution.