I recently bought a I Phone. I am always learning about more features and Apps. What phone do you use and what is your favorite App or feature on your phone
Do not jailbreak until you know your bootrom.
If you have the old baseband do not use blackra1n. try redsn0w
http://blog.iphone-dev.org/ http://iphonejtag.blogspot.com/ How old is your iphone? .You might have the new iboot.
The limitation is that the ones with the new iBoot can only be TETHERED jailbroken. That means, they
can be jailbroken like any, but any time the phone reboots (due to manual reboot,software reboot, or
dead battery), the phone will enter DFU mode on startup. And it can ONLY be booted up fully by
connecting the phone to your PC via USB, and running the Blackra1n program on your PC or Mac. Once it
boots back up, then it is in the exact state as if it had booted back up normally. Your JB and UL (if you
did it) are still working.