The excellent features of iOS 7 attracted many non-developers to upgrade it. iOS 7 beta is specially released for developers, the purpose to test new system’s performance and compatibility, and make improvements in the next version. But we can successfully upgrade the beta from iOS 6.x and even without a registered developer account. The key step is “Hold down the Shift (Windows) or Alt/Option (Mac) key and hit the Update button on iTunes (Note: Update Button, not the
Restore Button)“. Beside this, the whole process is no different with common restore operations
Of course, if you have chosen to click the incorrect Restore Button. At first firmware recovery will be very smooth, but when you reach to the final stage of restoration, which is the activation process for iOS 7, iTunes will display an error message:
This device is not registered as part of the iPhone Developer Program.If you are a member of the Program, please register your device in the iPhone Developer Program Portal.
If you are unfortunate encountered the above tips, I can only say that you careless, of course, this Activation error can be fixed easily, you only need to make the device into DFU Mode, re-use iTunes to restore the previous iOS 6.1.4, 6.1.3 firmware (Download 6.1.X firmware), then update to iOS 7 beta X again with iTunes, keep in mind you should definitely click on the Update button.
If you get an iOS 7 Activation error on iPhone, fixes as above method.
How to Enter DFU Mode
- Plug your device into your computer.
- Turn off the device.
- Hold the Power button for 3 seconds
- Hold the Home button without releasing the Power button for 10 seconds
- Release the Power Button but keep holding the Home button
- Keep holding the Home button until you are alerted by iTunes saying that it has detected a device in Recovery Mode
Make sure the device screen is blank and no logos are present
How to Exit DFU Mode
Hold Home and Power Button till the Apple Logo appears