Downgrade

Apple stops signing iOS 14.4.2, preventing downgrades from newer firmware

After officially launching the highly anticipated iOS & iPadOS 14.5 update a week ago with support for Face ID authentication while wearing a mask and 5G connectivity whilst utilizing dual SIM mode among other things, it should come as no surprise to anyone that nearly one week later the Cupertino-based company is pulling the plug on the previous iOS & iPadOS version — 14.4.2.

Apple’s decision to stop signing iOS & iPadOS 14.4.2 means that iPhone and iPad users will be unable to downgrade to this particular version of Apple’s mobile operating systems under most circumstances, with the lone exception being that users have their .shsh2 blobs saved from a time when that firmware was being signed.

Apple closes signing window for iOS & iPadOS 14.4.1, halting downgrades

Apple released iOS & iPadOS 14.4.2 last Friday alongside iOS 12.5.2 for older devices that don’t support iOS & iPadOS 14 in an effort to remedy a WebKit-based security vulnerability that the company had knowledge of being actively exploited in the wild to maliciously impact its user base.

Given the amount of time that has passed since the release of those updates, we’re unsurprised to learn that Apple has officially stopped signing iOS & iPadOS 14.4.1 this evening. It’s a move on the company’s part that bars the majority end users from voluntarily downgrading their handset’s firmware to the previous version.

Apple halts downgrades to iOS 14.4 after releasing iOS 14.4.1

Apple released iOS & iPadOS 14.4.1 last Monday alongside similar updates for macOS and watchOS with security vulnerability patches. But as many already know with Apple’s rather frequent software updates, it’s never long after a release before the company stops signing the previous version of its mobile operating system(s).

Such is the case with iOS & iPadOS 14.4, which Apple stopped officially signing just this evening. This move on the Cupertino-based tech giant’s part means that iPhone, iPad, and even iPod touch users will no longer be able to downgrade their firmware from iOS or iPadOS 14.4.1 to the older iOS or iPadOS 14.4 release.

New FutureRestore GUI makes unsigned iOS downgrades and upgrades more approachable

Excellent news for those who’ve been wanting to take advantage of futurerestore to downgrade or upgrade to an unsigned version of iOS or iPadOS – you’re no longer limited to using command line interfaces (CLI) to do so.

On Monday, the community was pleasantly surprised by the release of a new user-friendly and Java-based futurerestore application for macOS dubbed FutureRestore GUI (GUI of course stands for graphical user interface).

Guide to futurerestore: Introduction

This is an introductory article which explains what futurerestore is and how it works, as well as how to follow our futurerestore guides to upgrade/downgrade your device.

Before attempting any of the guides, everyone should read this article. It explains whether the guides apply to you, and if they do, which ones you should follow, as well as making sure that you fulfil the requirements for it to work. Not everyone can use futurerestore.

Guide to futurerestore Part 1: How to set a generator

This is Part 1 of a two-part guide on how to use futurerestore.

Before attempting this guide, everyone should read the introductory article, Guide to futurerestore: Introduction. It will explain whether this guide applies to you, as well as making sure that you fulfil the requirements for it to work.

If you currently have a jailbreak and you want to move to a different firmware with futurerestore’s generator mode, you must follow this guide first before following Part 2.

If you currently have no jailbreak, and you want to move to a different firmware with futurerestore’s Apnonce collision mode, you can skip this guide and head straight to Part 2. This method does not apply to most users.

Guide to futurerestore Part 2: How to use futurerestore to restore to unsigned firmwares

This is Part 2 of a two-part guide on how to use futurerestore.

Before attempting this guide, everyone should read the introductory article, Guide to futurerestore: Introduction. This will explain whether the guides apply to you, as well as making sure that you fulfil the requirements for it to work.

If you currently have a jailbreak and you want to move to a different firmware with futurerestore's generator mode, you must follow Part 1 of the guide before following Part 2.

If you currently have no jailbreak, and you want to move to a different firmware with futurerestore's Apnonce collision mode, do only this part of the guide. This method does not apply to most users.

How to save .shsh2 blobs on A12+ devices

With the introduction of the A12 chip, Apple strengthened the security around generating nonces, saving blobs, and restoring in general. The basic process remains the same, but due to a feature called nonce-entanglement (yes, really), there are a few extra hoops we need to jump through to save valid blobs. This tutorial will show you how to do so.

How to save your .shsh2 blobs online with TSS Saver

If you want to use futurerestore to restore your Apple devices to unsigned firmwares, you will need to have .shsh2 blobs saved for the firmware you want to restore to. Jailbreakers often want to move to an unsigned firmware in order to use a jailbreak there, when newer signed firmwares do not have one. All jailbreakers should save blobs for all their devices periodically in order to have the option of using futurerestore in the future. This guide will go through how to use the online TSS Saver tool to get the .shsh2 blobs you need.

Jailbreak Guide: Can I Jailbreak?

With Apple's ever-turning signing machine, jailbreakers are forever wondering what the best strategy is for their device.

Should they stick with their jailbroken firmware or upgrade? If they're already without a jailbreak, which firmware version do they need to be on to make sure they get one? What do they need to do to be able to upgrade from a lower jailbroken firmware?

In this article, we'll go through what we consider the smartest options for each device and firmware version, so that you can make an informed decision. Please read the conclusion too, for additional tips which apply to all jailbreakers.

Apple no longer signing iOS 14.3 following release of iOS 14.4

Apple just last week released iOS & iPadOS 14.4 to the general public with new features, bug fixes, and niche improvements, and as you might come to expect from the Cupertino-based tech company after having released a software update, the previous iOS & iPadOS 14.3 firmware is no longer being signed.

Apple closed the iOS & iPadOS 14.3 signing window just this evening, a move on the company’s behalf that prevents iPhone, iPad, and iPod touch users from being able to downgrade their handset’s firmware from the newer iOS & iPadOS 14.4 release. This should come as no surprise to anyone, as Apple generally follows this rhythm of signing and un-signing after each software update it launches, no matter how large or how small.

Apple stops signing iOS 12.5 following the release of iOS 12.5.1

Apple regularly releases software updates for the company’s many platforms, mobile and desktop alike. Interestingly, while most Apple’s software updates target either newer devices or upgrading the user experience of the company’s latest firmware iteration, a few heads turned when Apple released iOS 12.5.1 earlier this month to address a COVID-19 exposure notification bug that purportedly affected older iPhones.

Given that a software update was released, despite being for an older iteration of iOS, it should come as no surprise to anyone that Apple would soon close the signing window for what was previously the latest version of iOS 12. This happened Tuesday evening after Apple officially made the move to stop signing iOS 12.5, the predecessor of the newer iOS 12.5.1 update.