If jailbreaking an iPhone alone does not make you happy enough and you are looking to pimp your iPhone much more, how about changing your carrier name?
Here is a short guide that will help you customize the carrier name that is displayed on status bar of your iPhone.
Before you start, please note that this guide only works on iPhone OS 3.0 or above. Also, you need to have a jailbroken iPhone with Cydia installed. If you have not jailbroken your iPhone yet, click here for the jailbreaking guide.
Instructions to Change Carrier Name
Step 1: Tap on the Cydia icon on the Springboard to launch the application.
Step 2: The carrier name is changed with the help of an app called 'FakeCarrier'. Tap on the 'Search' option in Cydia and type 'Fakecarrier' to find the app.
Step 3: Select the app by tapping on the name and click on 'Install'. Follow the instructions to install the app. Finally, click on 'Return to Cydia' to finish installation.
Step 4: Once the installation is completed, you will be able to find a 'Carrier' icon on the iPhone Home Screen. Tap on the 'Carrier' icon to launch the FakeCarrier application.
Step 5: You are now given three options – 'Fake Carrier', 'Fake Time' and 'Show BatteryLevel'. Tap on the 'Fake Carrier' option to change the carrier name.
Step 6: You are now prompted to enter your Carrier text. Enter the text of your choice and tap on 'Set'.
Step 7: Similarly, you may replace the time banner on top with your customer text using the 'Fake Time' option. Tap on 'Set' to confirm the change.
That's all, the carrier name on your iPhone should change to the one of your choice. Please note that if you would at any point like to get back to the default Carrier and Time text, you may follow the same steps and at the final text input, tap on 'Reset' to get the text back to default.
Please let us know how it goes.