Udid

If you have downloaded iOS 5 beta, you must first activate your idevice to run it. Activating firmware means is that you have to get the UDID of your device and get it registered with the iPhone Developer Program before you can start (legally) loading beta firmware on it and you don’t face any problems while synchronizing with iTunes. Installing beta firmware on unactivated device will make it useless. Here is how you can activate iOS 5 beta 1.

{ read more }

How you can find the UDID of your iPhone, iPad and iPod touch for iOS 5 activation. UDID of your device must be registered with the Apple Developer Program before beta firmware installation on it. Because iOS 5 is in beta phase right now, you need to register the device UDID, and here is how you can find UDID of your iDevice.

{ read more }

Apple have released iOS 5 beta 2 to download for all registered developers. To download iOS 5 beta 2, you need to be a registered member in the developer program (cost: $99/year) but if you are not a developer, you can still download this release from here. Make sure UDID of your device is activated before you install iOS 5 beta 2 on it. The workaround used to activate iOS 5 beta 1 without UDID activation does not work on iOS 5 beta 2. So before you download iOS 5 beta 2, first find out the UDID of your iOS device, get it registered and then proceed to download iOS 5 beta 2 direct from these links.

{ read more }

If you are not a developer and still want to try iOS 5, then use this tutorial but at your own risk. Here is how to upgrade and activate the iOS 5 firmware without a developer account UDID. This iOS 5 hack was discovered Mert Erdir and exploits a security flaw in the activation screen. If you want to run the iOS 5 firmware, we recommend you to save your SHSH blobs on the iOS 4.3.3 firmware because if you encounter any error in the process you will still be able to downgrade your iPhone back to iOS 4.3.3. This method will only work for the iPhone.

{ read more }