Detailed Solutions for unknown iTunes error 9

Some Apple users may have met with the problem that when they restore their iDevice with iTunes, they can see  a dialog box with an unknown error 9 on iTunes . In addition, the reminder shows that iTunes could not restore this unknown error 9. This tutorial is mainly introducing five methods for you to solve the unknown error 9.

     

How did this unknown error 9 happened?

This error occurs when the device unexpectedly loses its USB connection with iTunes. This can occur if the device is manually disconnected during the restore process.

How to solve this unknown error 9?

Method one: Checking the USB cable.

1. When this problem occurs, you need to check the USB port.

2. Connect your iPhone/iPad/iPad touch to other USB ports of your Mac or PC. You are suggested to connect your iDevice to the USB port at the back of your PC. What’s more, the build-in USB 2.0 port is the best choice for you. After it’s connected, please try to restore your iDevice using iTunes.  

3. If this problem persists, please do the following operations:

* Please remove other USB devices, such as USB flash disk.

* Please remove all USB hubs, and then directly connect your iOS device to PC.

* Please bypass the base and then directly connect your iOS device to the attached USB cable.

  

* Please restart your computer.

* Please retry to restore your iDevice using iTunes.

Method two: Eliminating conflicts from third-party security software.

Some Apple users reflected that this problem can be solved by quitting from third security software.

Method three: Using other computers to restore your iOS device.

If this problem persists, please try to use another computer to restore your iOS device. Firstly, please make sure that you have installed the latest iTunes on this computer. Besides, please ensure that this computer is equipped with the USB 2.0 port. And then you can directly connect your iOS device to PC.

Method four: Setting your iDevice in DFU mode and using official firmware to restore your iDevice. 

* At first, you need to put your iDevice in DFU mode. Firstly hold the Home button, and then the Power button. Continue holding them for about 4 seconds after the screen become blank, and then release the Power button. Keep holding the Home button, and then you can put your iDevice in DFU mode.

* You need to open iTunes, and iTunes will give you a reminder that it has detected an iPhone in DFU mode.

* Now you need to press the key “Shift” and click the button”Restore”. iTunes will show you a window to choose firmware, please remember to choose the official firmware.

Method five: Fixing your iDevice.

If you have tried all methods we mentioned above, but the problem is still persists, please find a mobile phone repairer to fix your iDevice .  

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Free iPhone IMEI Checker

Free iPhone IMEI Checker and Unlocking services

WWW.iphoneimei.net

Unlocking your iPhone is easier 

than you think !

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3uTools Downgrades iPhone 4 from iOS7.1.2 to iOS 6.0.1 Tutorial

3uTools can downgrade iPhone 4 from iOS7.1.2 to iOS 4.0-6.1.3 only in the case that you have backuped the particular SHSH files before. 

Notes before flash:

1. Please use iTunes to backup your important data before flash.

2. Please directly connect your device to the computer via the USB cable, and don't use the extension cable or front USB.

3. Ensure you remember your iCloud account and password, or your device can't be activated after flash.

4. If the app immediately jumps to the main menu as you click the app icon after flash, please reinstall the app.

5. Check the box of “Don't erase user’s data” so that your phone data can be stored.

6. Steps to enter DFU mode: Keep the device in normal mode or recovery mode, plug in USB cable (please don't use USB extension cable); hold HOME button, then hold power button till the screen becomes blank; release the POWER button after about 4 seconds, but keep holding the HOME button for about 10 seconds.

Step 1. Ensure you have installed the iTunes on your computer, and then download the latest version of 3uTools.

 

Step 2.  Click Flash Jailbreak→Pro flash→Query SHSH. And then you can see which firmware versions you can flash your device to if you have backuped the SHSH files before.

Step 3. Download firmware. For example, you want to flash it to iOS6.0.1 now. Click "Firmware"→choose "iPhone 4"→click the downloading icon of “iOS6.0.1”.

 

Step 4. Click the icon on the upper right corner to enter Download center, and please wait till the download is completed.

 

Step 5. Click Completed→click the yellow icon of “search” to confirm the firmware location.

Step6. Click Flash Jailbreak→Pro flash→Select Firmware, and then pick up the firmware. Click Flash now to begin the flash.

Step7. Please wait till the flash is completed. When the iTunes sends a reminder in the flashing process, please cancel the box, or your device will be restored to the latest iOS version instead of 6.0.1 on iTunes!

 

 * As to the feature of backuping SHSH file, it is involved in the toolbar of "Advanced" on 3uTools.

 

 *3uTools will probably downgrade more devices later, but it can currently downgrade the following devices:

1. iPhone 3GS without SHSH file backup can be downgraded to iOS4.1 using 3uTools.

2. iPhone 4 with SHSH file backups can be downgraded to any compatible firmware using 3uTools.

3. iPhone 4s/5/5s/6/6Plus/6s/6sPlus, iPad 2/3/4, iPad Pro, iPad Air 1/2, iPod Touch5/6, and iPad mini 1/2/3/4 can be downgraded from the 9.3 to 9.2.1 using 3uTools.

 *Tips for other devices:

1.iPhone 4s without SHSH file backup can be downgraded to iOS 6.1.3 using odysseus-0.4.

   2.iPhone 5 with SHSH file backup can be downloaded to iOS7.0.4 using odysseus-0.4.

   3. iPhone 5s can't be downgraded with whichever tool.

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How to Recover an iPhone out of Disabled Mode Using 3uTools?

This tutorial of exiting disabled mode is only for iPhone 3G, 3GS and 4, and you can recover these disabled Apple mobile devices without iTunes.

"iPhone is disabled" is a big issue for some iOS users who enter the wrong passcode carelessly. Your iPhone will be locked automatically as you enter the wrong password several times. If you still enter the wrong password again and again, you will need to wait another 5minutes, 15mintues, 30 minutes…to gain the access of entering the password. Then you are only allowed to call the emergency number rather than use other functions. This situation is called “iPhone is disabled!”

Now you may become very nervous to ask what you should do to remove the mode of“iPhone is disabled”. Here is a tutorial for you to recover the iPhone out of disabled mode. However, Backup your information firstly. Your personal information is very important. And the truth is that you can backup your personal data via iTunes even as your iPhone is in “disabled mode”!

How to Recover a disabled iPhone with 3uTools

Step 1. Install the latest version of 3uTools, and connect your iPhone to the computer via the USB cable. Then click Flash Jailbreak→Advanced→Exit disabled mode.

 

Step 2. 3uTools will remind you to ensure the device in DFU mode, and then it can begin the process of exiting the disabled mode.

 

Step 3. Please wait till the process of exiting disabled mode is completed. Reboot the device, and then you can find the disabled mode has been removed.

 

Please note that this feature can’t read your device’s passcode, 

but simply help you remove the disabled mode of iPhone 3G, 3GS and 4. If you want to retrieve the password, please go browse the tutorial “How to Retrieve iPhone 4 and 3GS’s Password Using 3uTools?”

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iOS9.3.2 Beta2

iOS9.3.2 Beta2 has been supported by 3uTools Easy Flash. 

This version majorly updated Night Shift and Low-power Mode...

www.3u.com

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How to Retrieve iPhone 4 and 3GS’s Passwords Using 3uTools?

Please note that this tutorial is only for iPhone 4 and 3GS, which run the system versions lower than iOS7.0, with 4-bit passwords!  

If you change a new password and then forget it suddenly, it would be a little hard for you to deal with it. iOS Restoring could remove your data. However, 3uTools can’t only jailbreak and flash iOS devices, but also provide a variety of useful advanced features, for example, retrieving the device’s password. You can tap “Jailbreak→Advanced” to find it. But the tool can only support iPhone3GS and iPhone 4 running the system lower than iOS7.0, and retrieve the 4-bit passwords. Anyway, please do what 3uTools reminds.

Step 1. Connect your iPhone to the computer via the original Apple USB cable, and then start 3uTools.

Step 2. Please ensure your iPhone in DFU Mode. As to the steps to enter DFU mode, you can do acccording to the tool's reminders. Then Tap Flash Jailbreak→Advanced→Retrieve device’s password.

 

Step 3. During the password reading process, the white data rolls over on your iPhone screen.

 

Step 4. Please keep waiting instead of making other operations before the password reading process is completed. Finally, we get the password:1234

 

We have preset a very simple password for this tutorial, and thus it takes about 8 minutes to finish the process. As to the iPhone with a more complex password,  it will take more time. So please be patient if you preset a complex one!

FAQ about 3uTools retrieving iPhone’s password:

1.       Why the original Apple USB cable?

Try your best to use the original Apple USB cable in order to ensure the successful match of input impedance, and thus the transmission of data is not influenced by the physical connection.

2.       Why only iPhone 3GS and 4 get such a support? What about iPhone 4S, 5,…?

Currently the tool’s feature of retrieving the device’s password can only support iPhone 3GS and 4 running the system versions lower than iOS 7.0, and at the same time 3uTools can only read 4-bit passwords! In addition, this feature will become invalid if both devices are upgraded to iOS7.0 or higher iOS versions. Actually iPhone 4S, 5 and other above iOS devices have different CPU architectures.

3.       Why the tool only supports 4-bit password reading?

3uTools tries different password combinations till one of them succeeds. As to 4-bit password, there are tens of thousands of number combinations (from 0000 to 9999). So it has been a very complex task for the software to work out the correct password. Sometimes, you need to spend half an hour or more in order to retrieve a complex 4-bit password. By the way, please don’t do other operations, for example, deleting any system file, when you forget the password, but use 3uTools to help you retrieve it.

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