Hi, I have downloaded and installed Blackra1n RC1, and that doesn't work: that just display some empty dashes instead of bars for the Network. this is my current config Firmware 3.1.2 (7D11) Modem Firmware (baseband) 05.12.01 iTunes 9.1 on Mac OS 10.6.3 Is there any other software that could fix it? how do I get it on my iPhone? Or do I have to do some complex manipulation with downgrading the firmware? what are they exactly? Thanks a lot.