Can I downgrade my iOS to 7.x? I need to do it for app testing.
2 Answers
Due security reasons, there is no method to downgrade.
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2You can downgrade from beta versions. But, with every new release of the system, apple stop signing previous releases, so those can't be installed.– jherranCommented Jun 7, 2016 at 10:13
Apple has full control what releases are available to install and downgrade. iOS 7 is not downgrade able unless you jailbreak your iPhone (not recommended!).
You can check if Apple still allows to roll-back your previous iOS version at IPSW . Click on your device and see what versions are green (allowed by Apple) to install.