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To resolve firmware update errors and problems, reverting to a previous stable iOS version is a common solution.

However, new versions of iOS software often cause unpleasant experiences to device performance and functionality.

iOS users will not be able to restore to unsigned firmware using iTunes.ĭue to security concerns, Apple will periodically unsign iOS version and encourages users to use the new features offered by new iOS version updates. An unsigned IPSW means Apple has stopped supporting the iOS version. IPSW is the file extension of Apple’s iPhone mobile operating system. Method 3: The Easiest and Fastest way to Downgrade iOS

Method 2: Restore Unsigned IPSW by FutureRestore Method 1: Restore Unsigned IPSW Using SHSH2 Blobs Whatever the case, we’ll walk you through the entire process to fix bricked iPhone/iPad and gets it back to normal status by re-installing IPSW files(firmware package) on iPhone/iPad with/without iTunes.But before we get into those,be sure to backup your device, in case something goes wrong during the procedure.We highly recommend that you don’t move forward until or unless you’ve made a proper backup of your device.Part 2: Is It Possible to Restore Unsigned IPSW? You would be required to downgrade from iOS 13 to iOS 12, in order to fix/restore iPhone back to factory setting status. There are many situations that we will make in daily,and need to install IPSW file on our iPhone/iPad,for example update iPhone from iOS 12 to iOS 13 download and install iOS 13 on iPhone, install iOS 12 on iPhone/iPad downgrade iOS 13 to iOS 12 on iPhone and iPad fix the software update failed error get iPhone out of recovery mode/DFU mode fix iPhone/iPad stuck in black screen of death fix iPhone stuck at Apple logo repair an iPhone stuck at looping on start fix device abnormal system issue failed restore device to factory reset, as well as fix iPhone stuck on recovery mode after iOS 13 update.