Need help jailbreaking iphone 4

[jarrambidez]

I've used the jailbreakme.com in my iPhone 4. I am using 4.3.3 software and 04.10.01 baseband. It says it's jail broken and have taken the steps to unlock the phone. Still unable to use the different carriers sim. Says unable to start cellular network, or invalid sim. I've reset the network settings, reinstalled the software and rebooted the phone.

Please help!