Sad news that we learned the Dev Team earlier this week: from iOS 5, restoration (downgrade) your iPhone, iPod touch and iPad to previous firmware will no longer be feasible . Simply put, if one day your iOS 5.1 and you want to go back to iOS 5.0, the handling can be done. The team of hackers said on his blog that Apple has changed somewhat since the process of verifying the beta versions of iOS 5.