Custom iPhone Carrier Logos


Image via Chris

iOS 6? Please head over here.

Have you ever looked at your carrier name in the status bar of your iPhone? Chances are you have. If you’ve ever wondered where this actually comes from – this is really just an image contained in the carrier’s bundle of settings.

This makes it much easier for this to be customised or changed. Carriers can (naturally) and do change how their network appears – Optus changed from ‘OPTUS’ in firmwares lower than 4.x to ‘YES OPTUS’ in iOS 5. Telstra choose to display ‘3TELSTRA’ as ‘Telstra’, (and likewise for 3 – choosing to appear as ‘3’ instead of 3TELSTRA)

This is also handy for users – carrier bundles are easily edited and tweaked by users and can be deployed semi-officially – the same way carriers can deploy themselves on the side.

While in iOS 5 many of the actual carrier configuration data is signed and will refuse to work if the signature is broken – the images are free rein. You can do whatever you want here.

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Downgrading from iOS 4.3b back to 4.2.1

If you’re like me and enjoy tinkering and playing with the latest iOS betas simply for the ‘fun of it’, chances are you’re pretty ‘cluey’ about iOS and how the iPad, iPhone and so on work.

As of the iPhone 3GS and iOS 3.x, Apple now signs every single firmware with a signature, unique to every single device and firmware called a ‘SHSH blob’. This means that usually once Apple releases an update, you can’t go back down, you’re forced to go up. Presumably in an attempt to prevent jailbreaking, to enforce security and to make sure everyone has the latest version.

Usually it’s pretty easy to downgrade if you’ve got the SHSH blob for your device for the firmware you’re trying to downgrade to. Unfortunately, as of iOS 4.2.1, Apple is making things somewhat trickier.

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Some quick notes on the ‘Personal Hotspot’ feature in iOS 4.3

So Apple this morning released beta one of iOS 4.3, bringing with it a whole heap of little tweaks and a couple of major features, including the new ‘Personal Hotspot’ feature.

Personal Hotspot extends on the existing tethering support in iOS by adding WiFi as a sharing method in addition to the existing Bluetooth and USB methods.

As far as I can tell, I’d believe it’s tied to the tethering settings; if you carrier has tethering enabled (and depending on your carrier, you’ve paid for access), you should have access to WiFi tethering; it’s just another method in addition to bluetooth and USB tethering. However, don’t quote me on this!
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