21 Sep 2015

How to rollback iOS 9 to iOS 8.4.1?

company Apple On September 16, an updated OS was introduced. There were some delays with the update operating system, but in 2-3 days the number of those wishing to update the OS will subside and everything can be done much faster. The first people who want to roll back the system after updating to the previously standing iOS 8.4.1 have already appeared. Let's talk about how this can be done.

There are no significant reasons for such operations: the updated OS runs smoothly, looks amazingly beautiful San font Francisco, and "notes" in which you can draw have been a dream of many over the years. If the desire to roll back still remains, a certain determination will be required. Apple spent a very short time on these manipulations, during which you need to have time to roll back the system.

Would need Lightning cable to rollback OS or previous version for iPad 2/3/4 or iPhone 4s. iTunes must be enabled on the computer upload IPSW file(source of the old operating system), which can be downloaded by clicking on the link: http://osxdaily.com/2015/08/13/ios-8-4-1-update-ipsw-download , you will need to select the version mobile device. Next, you need to follow the instructions:

1. On a mobile device, you need to go: Settings-iCloud menu and then turn off the "Find my iPhone" option.
2. You will need to turn off the mobile device, for this you need to hold the lock button for a long time. Then launch iTunes on your personal computer.
3. We connect the iOS mobile device via a cable to the computer, while immediately pressing the home and lock buttons at the same time. You need to hold for at least 10 seconds. Next, the lock button must be released, and the "home" button should continue to be held. You need to keep it until a warning window appears in iTunes that the iOS device has appeared in Recovery Mode.
4. In iTunes, you need to select the model of your gadget and click on the "Restore iPhone" button, while holding down the Shift button on Windows or the OPTION button on Mac.
5. You need to select the IPSW file that was loaded earlier.
6. Wait for the process to complete, then the device should start. Ready.

Is the decision to stay on iOS 8.4.1 justified? The updated OS works great, visible glitches, problems, lags have not yet been found. The only reason that justifies the old version of the operating system is the applications. Prolonged adaptation of applications to the new OS is possible. In general, there is no need to hurry with the transition to iOS 9.

It is possible to rollback to a previous version of the operating system. Apple has traditionally left this opportunity for a while after the release of each new OS. A day after the release of the update, the company is still issuing certificates for iOS 8.4.1.

Released September 16 iOS update 9 is a major software release with . However, many iPhone and iPad owners report problems with their devices. Failures began at the stage of downloading the update, when people due to the unavailability of Apple services.

Owners of iOS devices complain about Wi-Fi not working correctly, missing menu items in the settings, graphical artifacts when displaying the interface, and operating system freezes. Among the innovations in iOS 9 are improved power consumption algorithms, but in reality, the gadget battery loses charge too intensively.

Probably, subsequent iOS 9 updates will fix these problems, but until then it makes sense to perform the downgrade procedure - rollback to iOS 8 firmware. This is only about iOS 8.4.1 version - Apple still issues digital signatures for it. It is worth remembering that the situation can change at any time.

Requirements:

• iPhone or iPad running iOS 9.0.
• iOS 8.4.1 firmware file in IPSW format.
• iTunes 12.3 for Mac or Windows.

How to downgrade from iOS 9.0 to iOS 8.4.1:

Step 1: Download iOS 8.4.1 IPSW file.

Step 2 A: Check that you have the latest version of iTunes installed. You can download iTunes 12.3.

Step 3: Make a backup of the data on the device. You can do this by going to Settings in iCloud -> Backup–> Create a backup, or by connecting your iPhone or iPad to your computer and saving the backup using iTunes.

Step 4: Disable Touch ID/Password in the main settings section.

Step 5: Turn off Find My iPhone in Settings –> iCloud.

Step 6: Connect to iPhone computer or iPad with iOS 9.0 on board to your computer.

Step 7: Open iTunes and in top panel program, select the icon for your gadget.

Step 8: Holding down Shift keyboard(or Alt on OS X), click the Restore button.

Step 9: In the program window, specify the iOS 8.4.1 firmware file downloaded in step 1.

Step 10: Wait for the procedure to complete, the OS recovery process will take some time. Now you can use your device with iOS 8.4.1.

Everyone has it android updates and iOS have their advantages. However, sometimes it happens that the latest version of the system has some critical flaws that are not fixed by the developer for a long time. Or a situation may arise when a new update just terribly loads a mobile device and slows down. One of these failed updates became iOS version 9.3.5. And everything would be fine, a new version was released that would correct the existing shortcomings, however, this update was the last for a number of devices based on the A5 processor, and more specifically:

• iPad 2.


• iPad 3 (iPad with Retina display).


• iPad mini (1st generation).


• iPhone 4s.


• iPod touch 5.

First of all, we need to use an exploit that will allow us to get a jailbreak. The list of devices on which it turns out to be used is as follows:

• iPhone 4s.


• iPhone 5.


• iPhone 5c.


• iPad 2.


• iPad 3.


• iPad 4.


• iPad mini 1.

How to Jailbreak

• 1. Download


• 2. Loading


• 3. We connect the iPhone or iPad to the computer using a cable.
• 4. Launch Cydia Impactor and drag the ipa file into the program window.


• 5. When prompted, enters your Apple data ID in the popup window.


• 6. Go to "Settings" -> "General" -> "Device Management" on your mobile device, select the Phoenix certificate and double-click the "Trust" button.


• 7. We return to the home screen and launch the Phoenix application. We agree with the offer to receive push notifications. Uncheck Phoenix at the bottom and click on the circle.


• 8. Lock the screen of your mobile device and after a few seconds you will see a message about the successful hacking of the system.


• 9. Unlock your smartphone or tablet and open Phoenix again. You will see an animation indicating that you are preparing to install Cydia. Wait for the device to reboot, after which the Cydia app store will be installed.


• 10. It is worth clarifying that after each reboot you will have to repeat steps 7-9.

How to roll back to iOS 8.4.1?

• Open the Cydia store and through the search we find "Filza File Manager".


• We launch this file manager.
• Go to /System/Library/CoreServices


• We are looking for the file SystemVersion.plist


• Edit Version (9.3.5) and Build (13G36) to Version (6.1.3) and Build (10B329) respectively.


• We save and reboot the device (at the same time we hold down the power button together with the Home key and hold until the boot screen with the apple appears).


• We go into the settings and check the version of the system. If we see the values ​​that we assigned, then everything went well.


• Go to the "Software Update" section and download the update to iOS 8.4.1


• After the update, you need to do full reset through the item "Erase all content and settings"

Attention! In the article, I use screenshots from iPod Touch, but this does not play a significant role. This instruction relevant equally for iPad, iPhone or iPod Touch.

iOS Firmware Rollback (Downgrade iOS)– setting more old version firmware. Previously, rolling back firmware to older systems was difficult, but more likely. To do this, the user had to save SHSH certificates ( digital signature, unique for each device).

In this case we do iOS rollback 9 on iOS 8. These two systems support: iPad 2, iPad Mini 1, iPhone 4s, iPod Touch 5G and newer devices in the product line. All of these devices can be rolled back exclusively on iOS 8.4(as of July 12, 2015) even with saved SHSH.

Now the general case. As a rule, a rollback to an older firmware version is possible:

a) if the previous firmware is still considered up-to-date. For example, in this moment the whole world is testing iOS 9 Public Beta. The official version of iOS 9 will be released in the fall. So, up to this point, the user has the opportunity to flash his device to the current officially iOS 8.4.

b) if new official firmware just got out. For example, after the official release of iOS 9, the user will have from 1 to 7 days (maybe a little more) to change their mind and roll back. At some point, Apple suddenly stops signing old firmware, and then a rollback is impossible or much more difficult.

The rollback instruction in this case is identical to the firmware through recovery ..

Step 1. Download the firmware from your device, to which you can rollback.

Step 2 Disable the function: “Find iPad, iPhone or iPod” (depending on your device). Settings->iCloud.

If this is not done, then iTunes will not allow you to carry out the firmware. After flashing, do not forget to turn the option back on.

Step 2 We connect the device to the computer through the cord. We go to iTunes and select the device. We are looking for the “Restore” button and press it while holding down the Alt-Option key (in OS X) or Shift (in Windows).

In a new window, select the downloaded firmware. Then, in the window that appears, click “Restore” and the restore / rollback process begins.

This must be remembered!

The device will be reset to factory settings. That is, before starting the system, you will have to reconfigure it (you must at least know the password for the Wi-Fi network).

A backup copy to an older firmware can be rolled only if you still have a backup copy made specifically on old firmware. This is also why it is recommended that you save a backup copy to your computer before flashing iOS.

Good luck everyone! :) If you have any questions, additions or problems - write comments.

After updating to a new version of IOS, you may notice that you do not like the firmware. In this case, there is a great way out - to roll back the software to the optimal, in your opinion, version. That is, if you have upgraded to, for example, IOS 10, then you can safely install IOS 8 on your device using the instructions below.

When to rollback iOS

The reasons for installing an older version of the operating system may be the following circumstances:

• With new firmware versions, the design changes, and not all users may like the new design.
• The most common reason is the appearance of freezes and glitches. Such problems occur for two reasons: either the new firmware version became available to users in a too raw form, with errors in the code and shortcomings, or the device that was updated was outdated for the loads created by new version iOS.

Please note that it is not possible to roll back any device for any version, detailed information about which device to which firmware version can be rolled back, you can view on the following site - http://appstudio.org/shsh. All data is arranged in a table format.

How to Rollback iOS to a Specific Version on an Apple Device

Before starting the process, you need to prepare the following things:

• iTunes installed on your computer and updated to the latest version.
• Downloaded to an easily accessible folder the version of your choice software, which has the IPSW format. You can download it from trusted Internet sites that distribute for free IOS firmware, for example, at the following link - http://appstudio.org/ios . Download the firmware strictly for your device model, otherwise there will be problems during installation.
• A USB adapter that will connect your device to your computer.

If all of the above conditions are met by you, then the next step is to prepare the device itself for the rollback process.

Saving important data

Please note that when you roll back a device, all data, applications, and media files are permanently erased from it, so you should take care of them. There is an option that allows you to delete files from the device, it will be discussed later in the article, but it is no less stable. You can save everything you need with backup created like this:

Disable password

Another important point is to disable the password and Touch ID, if it is supported and enabled on your device.

Deactivate Find My iPhone

Before any actions with the firmware of the device, you must disable the Find My iPhone function, since, in otherwise, iTunes simply will not allow you to perform any actions:

Firmware rollback

If all the previous preparatory work has been carried out, then you can proceed to the rollback itself. It doesn't matter which device you're downgrading from, or which version of IOS you'll be migrating from and to.

1. Connect your device to your computer with a USB adapter.
2. Log in to the system.
3. Go to the settings of your device by clicking on the icon in the form of a phone or tablet.
4. Hold down the Shift button on your keyboard if you're using Windows, or the Option button if you're using Mac OS. Without releasing the key, click on the "Restore" button.
5. A window with folders will open, you need to specify the path to the firmware that you downloaded earlier.
6. Wait while iTunes extracts the software from the firmware and installs it. The process can last from five minutes to half an hour, do not disconnect the device from the computer and do not interrupt the process in any way, otherwise the device may enter the endless recovery mode.

Rollback without data loss

This rollback option also exists, it allows you to rollback without losing data on the device. To do this, in paragraph 4 of the "Firmware Rollback" section, you need to click on the "Restore" button, and the "Update" button. All other steps are exactly the same. The only thing to keep in mind is that the full recovery, that is, resetting the system and installing it from scratch is safer, since the chance that any elements will remain from the previous version is much lower.

Video tutorial: How to roll back iOS version

Third party rollback programs

If for some reason the iTunes method does not suit you, then you can use the third-party RedSnow program. It is distributed free of charge for both Windows and Mac OS on the official website of the developer - http://redsnow.ru.

1. After downloading and opening the program, select the Extras section.
2. Click the Even More button.
3. In the menu that opens, go to the Restore block.
4. Press the IPSW button to specify the path to the pre-downloaded firmware.
5. In the notification that appears, you will be asked whether to cancel the modem upgrade or not. Click on the "Yes" option.
6. A window will open in which you will be warned that now the device will need to be put into recovery mode, close it.
7. Connect the device to the computer using a USB adapter and enter it into DFU Mode. How to do this is described step by step in the program itself.
8. If you have not performed such rollback operations with this program before, then click on the Remote button so that it automatically finds the necessary hashes on its servers.
9. Done, now it remains to wait for the end of the process. The device will automatically update to the version you downloaded and turn on, after which you will have to go through the initial setup process.

Is it possible to rollback individual applications

If the purpose of your system rollback is to install older versions of applications, then you should not carry it out, since there is a better option - use a special App Admin. You can download it directly from App Store is free. With this application, you can view all available versions applications installed on your phone and roll back to them. To use the program, just select the applications to roll back and enter a unique version number to which you want to roll back the selected application.

So, installing an older version of the software is possible on all devices from Apple, but you can not roll back to any version, but only to those that have the SHSH signature. The process can be done via official app iTunes and through third party programs. The main thing is to download the correct firmware version and not interrupt the update process until it is fully completed.