A PS3 downgrade is a downgrading of the console's official software (OFW). This operation is often necessary for, which allow you to run copies of games recorded on an internal or external drive consoles (you can find these games on the Internet).
In what cases a downgrade is necessary and possible, is described in this article.
Sony is constantly updating software PlayStation 3. In addition to improvements and bug fixes, updates have one unpleasant feature - they close undocumented features operating system, which allowed installing and running custom firmware.
The latest official version of OFW that can be flashed to run games without a disc is 3.55. This version was released in December 2010. If your set-top box was released later or you installed official updates on it, a downgrade is required for the firmware, that is, downgrading the official version of the operating system to 3.55.
PlayStation 3 firmware
Which PlayStation 3 models can be downgraded
Unfortunately, not all PS3 revisions lend themselves to downgrade. This possibility is determined, first of all, by the release date of the set-top box, which is indicated on the rear panel in the form of DATA CODE, consisting of one number and one letter.
Look at the DATA CODE and you can easily determine if the official version of your software can be downgraded to install unofficial firmware with advanced features.
The DATA CODE of your PS3 is 6-9 or 0
This means that your set-top box was released between 2006 and 2010. That is, this is PS3 FAT and the first revisions of Slim, on which it was installed factory firmware 3.55 or older.
If you have installed official updates released after 2010 (versions 3.56-4.65), you can roll them back to 3.55 and then install custom firmware.
The DATA CODE of your PS3 is either 1 or 2.
If you have DATA CODE 1A, then you can do a downgrade. With data code 1B, only certain models of set-top boxes can be downgraded (this is a happy exception to the rule).
Consoles with data codes 1C and 1D, as well as those with the number 2, cannot be downgraded. That is PlayStation 3 SuperSlim flash on this moment it is forbidden!
You cannot downgrade and install custom firmware for the following consoles:
PS3 Slim with DATA CODE 1C, 1D, 2A, 2B, 2C, 2D, etc.
PS3 Slim, DATA CODE 1B (with rare exceptions)
How is downgrade done
Although the downgrade affects only the software part of the set-top box, an e3 flasher is used to downgrade the firmware. This is a special chip that is installed inside the console. The chip is connected only for the duration of the procedure itself, then it is removed. That is, for downgrade, the console must be disassembled.
Therefore, you have two ways to downgrade your curling iron:
Buy an e3 flasher and do it yourself, following the instructions on the Internet.
Contact a specialist workshop, where they will downgrade and install the most stable and fully functional version of custom firmware. The cost of this service (downgrade + firmware) is comparable to the price of an e3 programmer, but you will also receive a guarantee for all work.
Which option is better for you - decide for yourself.
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This article is intended for those who use devices with an A4 processor (iPhone 4, iPhone 3GS, iPod touch 4G), but want to downgrade (downgrade firmware) to iOS 5.1.1 and get . To do this, you will need firmware 5.1.1 (we remind you that Apple has already stopped signing iOS 5.1.1).
In addition, you will need the latest public version of the tool RedSn0w. In this utility, we will use the so-called Stitching option, which will bind your certificate to the required firmware.
So, what are the steps you need to take to downgrade from iOS 6 to iOS 5.1.1:
5. Check if you have saved the SHSH certificate (). If you saved SHSH in Cydia, then just skip this step. If SHSH is saved on your computer, then place it in the same folder with iOS 5.1.1 firmware.
6. Connect the device to USB and transfer it (hold the screen off button for 3 seconds, then, while holding the screen off button, hold the home button for 10 seconds; after that, continue to hold the home button, but release the screen off button).
7. Run RedSn0w 0.9.14b2, go to Extras -> SHSH blobs -> Stitch.
8. Select an item IPSW and specify the path to firmware 5.1.1 for your device.
9. If you saved SHSH through Cydia, then in the section Blobs select item Cydia. If you saved SHSH on your computer, then select the item Local and specify the path to the file.
10. Once the firmware file and SHSH are selected, RedSn0w will begin to "glue" them together to create the final firmware that can be used even though Apple has already stopped signing iOS 5.1.1.
11. In RedSn0w, go back a couple of pages and select Pwned DFU - this will put your phone in Pwned DFU mode. Thanks to this, you will be able to recover to the firmware received in step 10 via iTunes. Otherwise, .
12. Open iTunes. The program should automatically detect that your device is in recovery mode. Hold down the Option button (in the case of Mac) or Shift (in the case of Windows) and click on the button in iTunes Reestablish. In the window that appears, select the firmware you created in RedSn0w.
13. Wait for iTunes to finish restoring the firmware. During this process, a “-1” error may appear in iTunes. If this happens, open RedSn0w, select the item Extras -> Recovery fix. Put your device into DFU mode.
14. After the Recovery fix process is completed, your device will be completely restored to iOS 5.1.1. Congratulations!
If you clearly followed all the instructions, then the firmware downgrade should be successful. Do not forget that this instruction Suitable only for certain devices (iPhone 4, iPhone 3GS and iPod touch 4G).
Apple released for developers iOS 10 preview at WWDC and many enthusiasts already installed and tested new version operating systems on their devices. However first beta always has a certain degree of risk, and probably your Apple device will not work correctly.
So, those of you who have downloaded iOS 10 beta 1 and experience serious problems with him, you you can always come back to stable version 9.3.2 . We have collected a few simple steps to do it for all those devices that are compatible since iOS 10.
How to return from iOS 10 to iOS 9.3.2?
- To start, do backups all your data from devices on which you are going to downgrade.
- Download iOS 9.3.2 ISPW for your computer. to download it. This is essentially system recovery program.
- On the site, select version 9.3.2, it will be highlighted in green. E that means that this is the only version that you you can return.
- Version 9.3.2 weighs almost 2 gigabytes so make sure you have free space on your hard drive.
- On your Mac or Window computer must beiTunes is installed.
- Connect device to computer and launch iTunes if she is not yet started automatically.
- Now you will see that in the upper rectangular block in iTunes window, there is two options to choose from - update or restore iPod / iPad / etc.
- Mac users should hold option (Alt) and then click on check for updates. Windows users need hold the Shift key and click on update check.
- A window will appear including last option in most cases there will be firmware version 9.3. X ; Click on it.
- You will see a message: "iTunes will update your iPod/iPhone or iPad to iOS 9.3.2 and check with Apple for the update"
- Click the refresh button to start the process
- E tap your device turns black when will the update process start, and then turns white with Apple logo. After that, wait until the device is updated.. Important! at this stage, the device cannot be used, also do not disconnect the USB cable, otherwise you will have to start all over again.
- Like after others your updates the device will reboot.
- To check if the rollback has passed successfully go to Settings.
A tool called iDeviceReRestore that allows you to downgrade iOS firmware on all 32-bit iPhones, iPads and iPod Touches. The utility is available for download and installation on computers running macOS and Linux, while a version for Windows will be released in the next few weeks.
Downgrading the firmware on a 32-bit iPhone and iPad is extremely easy and simple, and it does not even require a jailbreak installed on the device. However, like any software with similar functionality, there are a few requirements that must be met. If at least one of them is not fulfilled, then the iOS downgrade will fail.
iOS Downgrade Requirements:
- 32-bit iPhone, iPad, and iPod Touch
- iOS 9.X firmware installed on the device at the time of using iDeviceReRestore
- Mac or Linux computer
- Pre-saved SHSH certificates from the required firmware
If all these requirements are met, then you can safely proceed with the process of downgrading the OS version for iPhone, iPad and iPod Touch. This whole process comes down to an extremely simple sequence of actions, for which, of course, you should prepare in advance.
As the iDeviceReRestore developers themselves assure, this exploit allows you to downgrade the firmware from iOS 9.X to iOS 6, iOS 7, iOS 8, another version of iOS 9 and even iOS 10. In this regard, you should first acquire the file of the desired OS version with the extension ipsw. You can download all previously released firmware for iPhone, iPad and iPod Touch.
Now that the firmware has been successfully downloaded, you should download the iDeviceReRestore utility from the developers' official website. When the exploit is downloaded and unpacked into some folder, you should open it and place the corresponding certificates saved earlier inside the SHSH folder.
We connect the desired iPhone, iPad and iPod Touch to Mac computer or Linux (other Apple devices should be disconnected for the duration of the downgrade). Changes the device to (this is important). We launch the Terminal application and drag two files into its window at once - idevicererestore.exec and the file of the required firmware version. As a result, something like this should appear in the terminal ./idevicerestore -r 8.2.ipsw
If everything was done correctly, then by pressing the Enter key on the keyboard, the process of downgrading the version of the iOS operating system to the selected one will begin. If there is some problem related to the libimobiledevice library, then you can solve it with the following command in the terminal: brew install libimobiledevice
After a few minutes, the iPhone, iPad and iPod Touch should turn on and work already under the version of the operating system that was manually installed on it, bypassing iTunes and Apple servers.
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