Security software frequently blocks flashing tools, mistaking low-level USB drivers for malware.
Firmware is the permanent software programmed into your dongle's read-only memory. For UFi devices, this typically includes: 4g Ufi Dongle Firmware
Never turn off the UFi dongle during a firmware update. A sudden power loss can "brick" (permanently disable) the device. Security software frequently blocks flashing tools
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Many modern smart Ufi dongles actually run a scaled-down version of the Android operating system on a Qualcomm Snapdragon processor. These devices usually feature 4GB or 8GB of internal storage and can be modified using standard Android debugging tools. Marvell / MediaTek / ASR Chipsets 4g Ufi Dongle Firmware