Just wondering what the factory-default SIM LOCK code is on 2degrees MicroSIM cards? I have a 'blank' one (that I used for "SIM Swap") that now happily services my connection to 2degrees, but attempting to enable a SIM LOCK fails. I believe I need to enter any existing code before I can set a new one.

Note that I have never set a SIM LOCK code on this SIM before.

This thread suggests '0000' but that didn't work for me. I have one attempt remaining...