Are you comfortable using or hardware tools ?

Do you know the exact listed on the bottom sticker?

Doing this unlocks the :

The Telstra Smart Modem Gen 2 (Arcadyan LH1000) is a robust dual-band router distributed widely across Australia. While it performs well under standard conditions, its stock firmware restricts advanced configurations and locks the device to the Telstra network. Unlocking this router allows you to use it with any Internet Service Provider (ISP), customize DNS settings, and activate hidden networking features.