Open the casing to locate the physical test points (short pins) if necessary, or use an EDL command tool via ADB.
The factory firmware on most Ufi dongles is a stripped-down version of with a custom launcher that automatically starts a built-in web server. This web server provides the user interface accessible via 192.168.0.1 or 192.168.100.1 , where users can configure WiFi settings, check data usage, and view connected devices. 4g Ufi Dongle Firmware