It wasn’t long ago that non-jailbreak tweaks were all the rage, and with that fad came CarrierEditor, a tool that allowed you to change your carrier logo by editing the carrier settings file itself. However, before CarrierEditor even existed, Zeppelin was a popular jailbreak tweak that allowed you to do the same.
With evasi0n bringing an untethered iOS 6 jailbreak this week, Zeppelin has come back to life and provides a much easier, streamlined way of getting custom carrier logos. With that, iFans forum member HeadReaper has written a guide walking you through the process. He even opened a thread where he will try and fill requests for custom logos! What a nice guy.
Hit the comments of this story for the full walk-through.