Log in with your admin credentials (usually printed on a sticker on the modem). Go to or System > Upgrade Firmware .

If you decide to proceed, reply with your exact modem model (e.g., Huawei E3372h-153) and current firmware version, and I can guide you to a verified safe update source.

Sometimes a firmware update requires a new driver. If the modem isn't recognized after the update, go to "My Computer," right-click the modem drive, and select "Install" or "Run". Configure APN:

: Once finished, a message box will confirm the update was successful. Click "Finish" and close the tool. 4. Post-Update Steps Power Cycle