Downgrade Tool For Ios Mac

2 2 likes 90,209 views Last modified Dec 25, 2015 3:21 PM
  • IAnygo is a powerful iOS restore tool that can help you uninstall and install iOS to complete upgrading and downgrading without iTunes. This site uses cookies. By continuing to use this site you agree to our use of cookies in accordance with our Cookie Policy.
  • TinyUmbrella is an iOS downgrade tool that can save SHSH blobs (Apple's signature protocol for iOS restores and updates), and use the blobs to create a pre-signed IPSW firmware file that can downgrade iPhone/iPad to an older iOS version even if Apple has stopped signing the version.
  • [Tutorial] Simple step by step guide to use the Prometheus downgrade/upgrade tool. Tutorial ( self.jailbreak ) submitted 1 year ago * by TheComputerWhisperer Developer.
  • The Pangu iOS 9 jailbreak tool for Mac supports any iOS device that is running iOS 9, iOS 9.0.1 or iOS 9.0.2. Before you begin, make sure you have taken a backup of your iOS device on iTunes or iCloud.
  • In light of that possibility, and iOS 12’s recent release, you might want to downgrade iOS 12 to iOS 11.4.1. “Why” you may ask? To jailbreak iOS 11.4.1 in the event a tool is released.

TinyUmbrella is an iOS downgrade tool that can save SHSH blobs (Apple's signature protocol for iOS restores and updates), and use the blobs to create a pre-signed IPSW firmware file that can downgrade iPhone/iPad to an older iOS version even if Apple has stopped signing the version.

Starting with 10.7, on July 20, 2011 downgrading took an entirely new approach:


Apple introduced a restore install utility for Mac OS X 10.7 or later that boots with a command-R. Some macs older than 10.7's release

could get this utility through this firmware update. As indicated elsewhere on this forum, Macs that had a hardware refresh on or after July 20, 2011,

can't boot into 10.6.8 or earlier, though 10.6 server can be installed through virtualization. With each new retail release, the availability in the App Store may vary once you install an older retail online release. You may have to contact App Store billingto get an older online releaes available, or get a refund for an already previously purchased operating system that you go back to download.


Also, Apple has written these tips for those with Time Machine, wishing to restore an older versions of Mac OS X from Mavericks:


And El Capitan:

Disk utilization tool for mac.

For a limited time 10.7 is available for purchase and download here:

It comes with an array of effects, from Equalization to Bass Boost, and lets you remove superfluous background noise. There are keyboard shortcuts to optimize your workflow, too. Best audio video editing software for mac.



10.8 is here:


Change the /us/ for your country's 2 letter code when you go to http://store.apple.com/ to get the download link for your country.


Macs newer than March 29, 2010, but older than July 20, 2011 could not use a 10.6 installer CD, other than the prebundled CD with them. Call AppleCare if you need that disc:



10.6 retail otherwise is available for pre-March 29, 2010 Intel Macs:


A backup is still better than having no backups, as you avoid the pitfalls of older operating systems not being able to handle newer software, or newer software not being able to run on older operating systems. 10.7 was also available for a limited time on an Apple released USB flash drive. You could custom make a USB Flash drive with the installer if you didn't install the operating system the moment the download was complete by copying it to your desktop, and then to the flash drive from the Applications folder. You could also just keep a copy of the installer outside the Applications folder and later clone backup your system to hold onto the installer. Either way the installer was tied to the AppleID that downloaded it and license limitations agreed upon there.

10.8's release on July 25, 2012, and 10.9's release on October 22, 2013 likely limited the same hardware refreshes on or after to the same downgrading options. You may not be able to operate drivers or applications that weren't downgraded and removed with the operating system, unless they were compatible with the older operating system. Check with various vendors if uncertain before attempting a downgrade.


You have one more option once backed up, before attempting a full downgrade. Just repartition your hard drive. This option is available in Mac OS X 10.6 and higher as long as your machine supports the older operating system. To repartition your hard drive, read this link



starting where it says:

Create new partitions on a disk

You may be able to create new partitions on a disk without losing any of the files on the disk. Each partition works like a separate disk.

Once you have a second partition that is large enough to install the older operating system, just install it there. Then you can use Apple menu -> System Preferences -> Startup Disk to change your active operating system. Keep in mind each partition can't get over 85% full and that each partition needs to be backed up separately.


The rest of this tip addresses downgrading 10.6.8 and earlier systems:


Downgrading the operating system is not easy without a clone backup of the same system at an earlier stage already being present.


With 10.5.1 Intel or later (including 10.6 to 10.6.8) to 10.5:


1. Verify you made a Time Machine backup before you upgraded to 10.5.1 or later.
*2. Boot off the Leopard installer disk. Note for Macs newer than the October 26, 2007 release of 10.5, a later 10.5 installer disc may be needed:

- 10.5.1 retail was released November 15, 2007

- 10.5.4 retail was released June 30, 2008

- 10.5.6 retail was released December 15, 2008

Macs generally won't boot an earlier retail version of Mac OS X than their release date, and they won't boot a system specific (model labelled) or Upgrade or OEM disc unless designated for their model and vintage of that model.

3. Select the installation language.
4. Go to the Utilities menu and use the Restore from Time Machine backup to restore to your Time Machine state before you installed 10.5.1.


This will only work, if you have no data to salvage from 10.5.1 or later.


* With Mac OS X 10.7 and 10.8 a Lion recovery assistant helps you with this function.

Note, you can also when you buy 10.7 or 10.8, make a self extracted backup of the full installer on a Flash drive. Several places on the net

offer solutions for that to work on the details before you download from the Mac App Store. Apple also for a limited time sold a USB Flashdrive version of 10.7, that will work on pre-10.7 (July 20, 2011) machines that meet the qualifications on the user tip for 10.7 installation.


For those with machines released after 10.8 (July 25, 2012), only the recovery assistant, may work and it may not be possible to use another 10.8 installer used on a 10.7 machine and transfered to a Flash drive. Of course all this requires any such installer follow the license agreement of the said installer for the number of installations.


_____

With:


10.6 or later
From (10.5 Intel through 10.5.8) to (10.4.4 through 10.4.11)
From (10.5 PowerPC through 10.5.8) to (10.0 through 10.4.11)
From (10.4 through 10.4.11) to 10.3
From (10.3 through 10.3.9) to 10.2
From (10.2 through 10.2.8) to 10.1


Either restore from your backup or:


1. Backup your existing data by cloning it to external hard drive(s) at least twice.


2. Write down registration codes for installing applications.


3. Erase and install the operating system with none of the backups connected to the machine during the erase and install process, and no peripherals other than display, keyboard and mouse attached.


4. Restore user documents that are capable of being downgraded.
Ask on Discussions if the applications you use can be downgraded before attempting this.


5. Install from the original installation disks which shipped with your machine (Mac OS X 10.7 Lion has a Recovery Assistant instead of discs, if your Mac shipped with Lion) additional applications which didn't ship with the operating system:



6. Install from the third party CDs and downloads any other applications.


Ios Downgrade Tool For Mac

--------------------------
Finally, users downgrading from 10.3.x to another 10.3.x, and 10.2.x to another earlier 10.2.x can use archive and install:



Note:

Downgrade Tool For Ios Mac Os


1. Apple applications left behind from a newer installation may not work in an older installation on an archive and install.


2. Installation from restore disks are required if your Mac is


- - Intel and shipped with 10.4.4 through 10.4.11.
- - The install you are attempting is the minimum that Mac can run: http://support.apple.com/kb/HT2191
- - The retail installation available is older than the Mac itself.

If you are waiting for an iOS 11 jailbreak and don’t want to miss out the rare opportunity to jailbreak your device, then now is your chance. An iOS 11.1.2 Jailbreak may be releasing soon and it will not work with iOS 11.2. So to maximize the chances of your iPhone, iPad or iPod touch supporting the jailbreak, it should be running iOS 11.1.2. Luckily Apple has not closed the iOS 11.1.2 signing window.

This essentially means you can upgrade to iOS 11.1.2 if you are running any iOS version released before it. You can also downgrade iOS 11.2 to iOS 11.1.2 until the signing window is opened. In this step by step tutorial we will guide you on how to install or downgrade iOS 11.1.2 on your iPhone, iPad or iPod touch and prepare for the possible jailbreak release.

Update:iOS 11.1.2 Is No Longer Being Signed

Upgrade or Downgrade to iOS 11.1.2

Note: Before you begin, do make sure iOS 11.1.2 is being signed. We will update this post once the signing window closes, after which you won’t be able to install it.

Step 1: First of all you need to download iOS 11.1.2 IPSW for your device. You can find the link specific for your device here.

Step 2: Once the IPSW file has been downloaded connect iOS device to iTunes and then put your iPhone/iPad in DFU mode.

DFU mode instructions: Press and hold the Sleep/Wake button and Volume Down button (Home Button iPhone 6s or earlier) for 8 seconds. After 8 seconds let go of the sleep button while keeping the Volume Down/Home button pressed. Let go of the button as iTunes says “iTunes has detected an iPhone in recovery mode”. Click on Ok button on computer to continue.

Step 3: Now hold the Option/Alt key (Shift key on Windows) and click on the ‘Restore iPhone/iPad’ button. From the window that opens select the iOS 11.1.2 IPSW file you downloaded earlier.

Step 4: Click on ‘Restore and Update’ button and let iTunes downgrade or upgrade your device to iOS 11.1.2.