LDW931 4G USB WiFi modems, often sold white-label by brands like KuWFi, require manual firmware updates via a web interface ( 172.16.0.1
A failed firmware update can brick your LDW931. Follow this checklist religiously. Ldw931 Firmware Update
Most updates use a tool called SWDownloader or a web-based local update feature. LDW931 4G USB WiFi modems, often sold white-label
How to update the firmware of 4G LTE Mobile Wi-Fi - MERCUSYS LDW931 4G USB WiFi modems
For a detailed list of changes and improvements, please refer to our changelog document: [Insert link to changelog document]