Many people report a iPhone Error 4005 in their iPhone when trying to update or restore an iPhone, iPad or iPod. In a nutshell, the iPhone 4005 error breaks the connection between an iOS device and the Apple server. The usual situation is that your iPhone or iPad is stuck in DFU mode or you are experiencing other system errors with "Unable to restore iPhone. An unknown error has occurred (4005)".
In fact, by the time you receive the iTunes 4005 error message, you are already notified of certain issues. To resolve the 4005 error in iTunes, you can carefully read the following causes and solutions. This is your complete guide on how to fix the 4005 error of the iPhone.
The iTunes 4005 error is a very common iPhone, iPad and iPod error, which usually occurs when updating or restoring your iDevice via iTunes. This error can be caused by many reasons, for example, the iOS system problem on your iDevice, the version of iTunes, the status of the USB connection and the USB port of your computer, some viral infections, etc.
If you examine this type of problem, even very occasionally, it quickly becomes clear that problems, error messages, usually occur when your iPhone, iPad or iPod is updated or restored. One of the most annoying is the 4005 error. This may be an iTunes 4005 error or an iPhone 4005 error, but it means that your iPhone, iPad, and iPod can not be restored due to an error that can not be identified. It is very frustrating.
- IOS system issues on your iPhone, iPad, or iPod touch.
- The iTunes software has not been correctly downloaded or installed.
- iCloud has not been properly disabled, resulting in its inability to restore.
- This is an old version of iTunes or a computer operating system.
- There are USB connection problems.
- There is a viral infection.
- Some of the links are broken.
- Program files related to iOS or iTunes are corrupted.
Method 1: Restart your iPhone and computer
The first method is simple and easy to follow. Simply restarting your device will help you get out of this situation. To restart your iPhone:
- Press and hold the Power / Standby buttons until the red cursor appears.
- Now slide the slider
- When the power is completely off, press the Power / Standby button again until the Apple logo appears.
- Even if you restart your computer, it will help you solve the problem. And you'd better know how to restart your computer.
Method 2: Reboot your iOS Device
You can try forcing the restart of your iPhone, iPad, iPod touch to see if it can fix the 4005 error of the iPhone or the error 4005 of iTunes. Or if you can not restore your iPhone, you can also restart your iPhone to solve some problems. To do this, simply press the power button to display the Slide-Off slider on the iPhone screen, then slide your finger to the right to turn off the iPhone, then press the d button again. power supply to turn it on.
Method 3: Check USB Ports
Most iTunes 4005 errors and other error codes are specific to device hardware connections. These errors mean that there is no established connection between the two, unable to read the communication of the two devices or unable to communicate at all. Before going any further in troubleshooting your iPhone, try using another computer and connect the iPhone or use another USB port. Test what works for you. If that fails, think of other advanced methods to fix iTunes Error 4005.
Method 4: Put your iPhone into DFU mode
To resolve the iTunes 4005 error, simply restart your iPhone or perform a hard reset to resolve the problem. You can also put your phone in DFU mode. But the risk part of this step is that everything can be deleted or something is wrong. This can be useful when your phone falls on water or anything else that prevents your device from restoring it.
But if your device is able to take the risk of DFU restore, you can take it further. However, follow the steps below to put your device into DFU mode.
- Start by connecting your iPhone to your computer via a USB cable. Regardless of whether your phone is on or off, simply launch iTunes after that.
- Then, press and hold the Standby / Standby + Home buttons simultaneously for up to 10 seconds.
- Now, you have to release the Sleep / Wake button while holding down the Home button until the message "iTunes has detected an iPhone in recovery mode"
- After that, release the Home button
- When your iPhone enters DFU mode, your device turns black and if it's not black, try again and repeat the steps from the beginning.
- Now, restore your iPhone using iTunes. You can now see that your iPhone goes into normal mode as it was before.
Method 5: Update the computer OS
If your computer's operating system is not up-to-date, you may also get the 4005 error. An obsolete operating system is one of the common problems you may encounter on your device. Even older versions of iTunes will not work with outdated OS software.
- Go on the Mac App Store
- Then click Updates
- If a new version is available, follow the prompt to download and install.
- Open the Apple menu
- Now go to Software Update and install the available updates
- Tap the Start button
- Type Update in the search field
- Finally, click on Windows Update among the given results