Roll back ios 9 to 8. How to roll back to a previous version of iOS
It is possible to roll back to the previous version operating system... Apple traditionally leaves such an opportunity for a short while after the release of each new OS. A day after the update was released, the company is still issuing certificates for iOS 8.4.1.
Released September 16 iOS update 9 is a major software release with a large list of changes and improvements. Nevertheless, many iPhone and iPad owners report problems with their devices. Failures began at the stage of downloading the update, when people could not receive the promised distribution due to the unavailability of Apple services.
Owners of iOS devices complain about the incorrect operation of Wi-Fi, missing menu items in the settings, graphic artifacts when displaying the interface, and freezing of the operating system. Among the innovations in iOS 9 are improved power consumption algorithms, but in reality the battery of gadgets loses its charge too intensively.
Probably, subsequent updates of iOS 9 will fix these problems, but until then it makes sense to perform the downgrade procedure - rollback to iOS 8. This is only about iOS 8.4.1 - 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 rollback from iOS 9.0 to iOS 8.4.1:
Step 1: Download the iOS 8.4.1 IPSW file from this link.
Step 2: Check what you have installed latest version iTunes. 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 your iPhone or iPad with iOS 9.0 on board to your computer.
Step 7: Open iTunes and select the icon of your gadget in the top bar of the program.
Step 8: Hold down Shift (or Alt on OS X) and 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 until the procedure is completed, the OS recovery process will take some time. You can now use your device with iOS 8.4.1.
Did you not hesitate to take the opportunity to update your iPhone and iPad to iOS 10, but later find out that the firmware is causing problems that you no longer want to endure?
You are not alone - many users are experiencing problems with fast battery drain or slow performance. If you are one of those users who are wondering how to return an old version of iOS, then you should know the whole truth about the situation with a rollback to previous versions.
Just a month after the release of iOS 10, Apple stopped signing iOS 9.3.5, which means it's impossible to rollback from new versions. The same thing happened with versions 10.1 and 10.2. According to Apple, all the bugs that previously prevented users from fully enjoying iOS 10 have been eliminated and there is no need to go back to older versions that could threaten the security of user data.
Until the end of 2016, users could use the standard method - downloading the IPSW file of the previous iOS version using iTunes. But now Apple has covered up this opportunity and users who hastened to try new opportunities have no choice but to look for unconventional solutions to the problem.
In December 2016, a hacker using the nickname tihmstar released the Prometheus utility, with which, provided the SHSH blobs were saved, it was possible to rollback to older versions of iOS. But right before the New Year, Apple blocked the utility by adjusting the work of the servers for issuing digital signatures. After that, everyone who tried to extract digital certificates received only an error from the server.
By February 2017, the author of the utility managed to find a solution to bypass the blocking and some users were able to use the utility to downgrade (downgrade or rollback). But the tool only worked inside 10.0.x - 10.2.1 if SHSH blobs were saved beforehand. For example, using Prometheus, you can save SHSH blobs for iOS 10.2, upgrade to 10.2.1, and then go back to the previous version.
As for the rollback from iOS 10.X.X to iOS 9.X.X, Apple has put a fat point, closing any possibility of downgrading to the old version. When trying to install an old version of iOS, iTunes contacts the certificate issuing server in order to activate the firmware. Since Apple considers firmware lower than 10.2 irrelevant, the user simply receives an error due to the lack of digital signatures.
Thus, iOS users are left to look for the advantages of existing firmware versions and update only when they are sure that the new versions being released do not contain errors.
If in the future there are any new ways to downgrade to old versions, we will definitely inform you about it.
On iPhone and iPad, it is possible to rollback to the previous version of the OS. Traditionally, after the release of each new edition of the proprietary "axis", Apple leaves such an opportunity for a short while. A day after the release of the cumulative update, the company is still issuing certificates for iOS 9.2.1.
Released on March 21, iOS 9.3 is a major software release with a long list of changes. The main innovation is support for the Night Shift mode, which automatically shifts the color temperature of the display to the warmer end of the spectrum at night. Research has shown that the bright blue color in the evening can affect a person's circadian rhythms, making it harder to fall asleep. Other innovations include password-protected Notes, an improved version of the Apple News app, and an updated CarPlay interface.
Based on benchmarks, iOS 9.3 performs better than iOS 9.2.1 when it comes to performance. Nevertheless, some users complain about the accelerated discharge of the battery of their devices and problems with the activation of gadgets. In such cases, it makes sense to use the instructions for downgrading to the previous OS version. Another reason why a user may decide to downgrade is jailbreak. According to preliminary information, the upcoming exploit will not be available for the most recent version of the OS, at least for the first time.
Note that we are talking about refunds only on iOS 9.2.1 - Apple still issues digital certificates for it. The situation can change at any time.
Requirements:
- iPhone or iPad running iOS 9.3.
- IOS 9.2.1 IPSW file.
- iTunes 12.3.3 for Mac or Windows.
How to rollback from iOS 9.3 to iOS 9.2.1:
Step 1: Download the iOS 9.2.1 file from Apple servers at this link.
Step 2: Make sure you have iTunes 12.3.3 installed. You can download the latest version on this page.
Step 3: Back up your data. This can be done in the settings of your iPhone or iPad: iCloud -> Backup -> Create a backup, or by connecting your mobile device to your computer and saving the backup using iTunes.
Step 4: Turn off Touch ID / Password in Basic settings.
Step 5: At this step, you need to disable Find My iPhone. The option is in the Settings -> iCloud menu.
Step 6: Connect iPhone, iPad or iPod touch running iOS 9.3 to your PC.
Step 7: Open iTunes and select the icon of your gadget in the top bar of the program.
Step 8: Hold down Shift (or Alt on OS X) and click the "Restore" button.
Step 9: In the program window, specify the iOS 9.2.1 firmware file that you downloaded in step 1.
Step 10: Wait until the procedure is completed, the OS recovery process will take some time. You can now use your device with iOS 9.2.1.
Not perfect. It offers several new features, but is not much different from the previous version. At the same time, users of old devices may experience various difficulties associated with the fact that their devices are not powerful enough for the new firmware. In this connection, there may be a desire to return to a stable one. To do this is quite simple, the main thing is to follow the instructions.
- Make sure your smartphone or tablet is at least 75% charged.
- Disable Find My iPhone. To do this, go to "Settings" and go to the iCloud section, and then turn off the Find My iPhone function. The system will ask for your Apple ID password and you will need to enter it.
- After that, the "apple" device must be connected to the computer and run iTunes, and the device itself must be put into firmware mode (DFU, Device Firmware Update). To do this, simultaneously hold down the Power and Home buttons for 10 seconds. Then release the Power button while continuing to hold the Home button. The system should indicate that the device is in DFU mode and ready for firmware. Click the "Ok" button.
- Select the "Restore iPhone" (or iPad) option. iTunes will ask you to confirm that you really want to go back to the old firmware. We confirm this by pressing the "Next" and "Agree" buttons, after which the automatic process of installing the old firmware will begin.
- It usually takes about 20 minutes to update the firmware, but if you encounter problems (for example, with Internet access or connecting to Apple servers), you can manually install the firmware using the file image. Just hold down the Shift key on your keyboard (or Option on MacOS) and click on the "Restore iPhone" option. In the window that opens, find and select the image file you downloaded and sequentially click the "Open" and "Restore" buttons. You don't need to do anything else, just wait for the result.
- After returning to the previous version of the firmware, the system will persistently ask you to update, therefore, in the settings of your device and iTunes, you must disable automatic updating.
The differences between iOS 9.3.2 and iOS 10 are minor. The latter got a beautiful new lock screen, a keyboard with hints and a bunch of new emoticons. The system also became more open (for example, Siri made friends with third-party applications) and learned to automatically group photos of people, places and objects into beautifully designed collections. There are no other significant innovations, and those that do exist may cause performance degradation on older devices. At the same time, it is not known what problems will still be discovered and how long it will take to fix them.
Don't like iOS 11? Why was it updated then? ... Although, this release is really specific. Not everyone will come right away. Every year Apple introduces new versions of iOS with supposedly improved functions and improved optimization, but in fact, for the last couple of years, we have been “rubbed in some kind of game” full of bugs and flaws.
We, in turn, find ourselves in the place of "guinea pigs" who must identify weaknesses and point out them to Apple for further correction. What was the recent release of the dreadful iOS 9, when users around the world began to complain that theirs.
Basically, a similar situation was with the release of iOS 8 ... and 7 too. So, if something strange happens to your iPhone after the update, it may not be too late to roll back to the previous version of iOS... Today I will tell you how to do it.
Nuances of the update
But first, I would like to mention a couple of nuances associated with iOS firmware that you simply must know... As you already know, the update for more new firmware passes quite intuitively by pressing one button in the Phone Settings or in iTunes on the computer.
If you want to return to a non-previous version of iOS, you must first download the firmware file with the ipsw extension from the Internet yourself, and then install it by connecting the phone to the computer.
If you suddenly decide that you can now install any old firmware, I will have to upset you. See how the situation stands. During the installation of any version of iOS, your device contacts the Apple server for a digital signature.
If the server sees on your device a version of iOS that is no longer supported, it will not sign it and the installation will end with an error. If you do not understand, I will explain with an example: if you have just installed iOS 9.0, then now you can only return to 8.4.1 and that is not a fact. With the release of new versions of iOS, Apple stops signing older versions.
The maximum is “you can take one step back”. At the time of this writing, the only current firmware for all devices starting with the iPhone 4S is 9.0.2.
How to find out which versions of iOS are current? Very simple! Go to ipsw.me and click on the model of your device.
How to downgrade to a previous version of iOS
The step-by-step instruction looks like this:
STEP 1 - Download the firmware file with the extension .ipsw from the link above:
STEP 2 - Make sure you have the latest version of iTunes
STEP 3 - If possible,
STEP 4 - B Settings iPhone disable features: Find iPhone and Touch ID / Password
STEP 5 - Connect iPhone to computer using USB cable and start iTunes
STEP 6 - Click on your device icon in the upper left corner of the window
STEP 7 - While holding the Shift ( Option / Alt on MAC), click on the Update button in the iTunes window