LG VX-6100
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The web page in that thread has been removed however, at least it was the last time I checked. Basicly it provided the steps to edit the eri.bin file in your phones system file. You have to use a program like WinHex to edit it.
Do some more searches on www.cellphonehacks.com and I bet you'll find some more answers. If I get some time today I'll try and round up some more links.