iOS is now on its second beta and is currently being downloaded by record numbers of testers. However, while most are getting on fine with the new beta, others are finding that it is very buggy and very unstable, leading to them wanting to downgrade back to their previous iOS 9 version. Right now, because iOS 10 firmware is only in the beta stages, it is still possible to downgrade safely and easily. Other users have been stopped in their tracks by another kind of problem – an Activation Error on iTunes. This is easily fixed so no need to panic.
Image : iOS 10 Activation Error on iTunes
Method 1 : Downgrade Your iOS Version
Downgrading is easy provided you want to go back to a version of the iOS firmware that Apple is still signing. Do remember though, if you backed your device up through iTunes while on iOS 10 beta 2, you cannot access the data on that backup if you choose to downgrade.
- Check to see if you are on the latest iTunes version. If not, upgrade before you go any further
- Download iOS 9 IPSW [ext link] for your chosen downgrade version – make sure you download the IPSW that corresponds to your particular device
- Open Settings on your device
- Click on iCloud > Find My iPhone and disable it – you can enable it again afterwards
- Connect your iOS device to your computer
- Open iTunes .
- Now you must place your iOS device into DFU mode. To do this, hold the Home and Power buttons on your iOS device down at the same time. Hold for 10 seconds, let go of the Power button and continue holding the Home button until you get a Device in Recovery message in iTunes
- Press SHIFT [ Windows ] or ALT [ Mac ] on your keyboard and click on Restore in iTunes at the same time
- Locate the IPSW file you downloaded and click on it
- Follow the on-screen instructions and iTunes will begin the process of downgrading your iOS device.
- Your device will reboot on to the Hello screen when the downgrade is complete
Method 2 : UDID Registration
The error is most likely happening because your UDID has not been registered with Apple. If you want to test out the beta versions, there are a couple of ways you can do it but first, you must find your UDID number and make a note of it:
- Connect your iOS device to your computer and open iTunes
- Click on Device Summary for your device
- Click on Settings
- Locate the number and highlight it
- Right-click and select Copy
Become an Apple Developer :
This will set you back $99 per year:
- Visit the page for the Apple Developer Program [ext link]
- Sign up, using your Apple ID, and make your payment
- Now you can log in to the Developer Center with your ID
- Register the UDID number of your device
- Then you can download the IPSW for iOS 10 beta 2 using the Developer Portal
- Extract the file and install it using the steps listed above for downgrading