Updating the firmware is critical for resolving connectivity "bootloop" issues, IMEI errors, or UI freezes. Optus Huawei E3372 Modem Firmware Upgrade & Mod
Open a browser and enter the default gateway IP: . huawei e8372h-155 firmware update
: Plug the modem into a USB port or connect your computer/phone to the modem's Wi-Fi network. Access the Dashboard Updating the firmware is critical for resolving connectivity