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Device guides for

OPTUS E3131 USB Modem/Lion

Most searched guides

Updating the modem applicationRecharging data for my modemInserting a SIM into my modemInserting a memory card into my modem

The modem application can't find a network

If the modem application tells you that no networks can be found, follow this guide to solve the problem.

Solution: Try again later when you're in an area with better network coverage.
View our network coverage map.

Solution: If your SIM is faulty, the modem application will tell you that your SIM isn't accepted. Contact your nearest Optus dealer to get a new SIM.

Solution: Check if an Optus SIM had been inserted into your modem.

Solution: Choosing network mode for my modem

Solution: Key in your PUK.
If you don't know the PUK, it can be obtained here: Optus My Account.