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How To Remove iPhone Update Error 4000 Quickly?

Updates are an essential requirement for every application especially, those loaded on iPhones. Provided by the manufacturers on a periodical basis, updates ensure smooth and easy functioning of these programs.

Updating a device or an application doesn’t always happen in a hassle-free manner. Users can come across certain errors at times. The iPhone Update Error 4000 is one such issue, which users often face while updating their iOS devices. This is a very commonly occurring error that stops an iPhone from getting an update.

If you are also facing error 4000 during updating your iPhone, then you need to follow this article closely. We are going to provide you with some easy fixes to resolve this error on your iPhone.

What Happens During iPhone Update Error 4000? 

When your iPhone is hit by error code 4000, the first thing that takes place is the device fails to get the necessary update. An error message appears on the screen and the device freezes for some time.

Your iPhone might face occasional freezing issues and blackouts later on. It might also turn off and restart on its own.

Reasons Why iPhone Update Unknown Error 4000 Showing Up

There can be various factors that can be responsible for this error. In this section, we will go through the possible causes that can trigger this error and prevent your iPhone from getting an update. 

  1. One of the major factors behind this error is an outdated, old version of iTunes. An older version can block the conditions necessary for getting an update on your iPhone.
  2. Sometimes attacks by various malware or viruses on your iPhone can potentially trigger error 4000.
  3. Corruption in the iTunes registries might often lead to this problem.
  4. Another factor can be the lack of system files on your iPhone or iOS device.
  5. Hardware issues associated with the USB ports can often cause this error.

Easy Solutions To Resolve iPhone Update Error 4000

Since updates are very necessary for any device to run smoothly, you must quickly resolve this iPhone error. There are some simple and quick fixes that you can try to get rid of this error. These solutions are stated and discussed in details below:

Solution 1- Update iTunes

The presence of an outdated version of iTunes on your iPhone can be a major reason behind error code 4000. The first solution that you should try, is to get an updated version of iTunes. You can follow these instructions to update the old iTunes version:

At first, launch the iTunes application. Locate the ‘Help’ option present at the upper right-hand side of the screen.

Select the ‘Check for Updates’ option. In case, the iTunes on your device is outdated, a certain pop-up box will appear on your screen.

Click on the ‘Download iTunes’ option. Now, wait for some time. Once the updated version is downloaded, install the application on your device.

Finally, restart the device and check if the problem persists.

Solution 2- Check for Issues with Connection

Sometimes, error 4000 can happen if there is some issue with the USB cable or the USB port. In that case, you need to check if there is any problem with the connection:

  1. Firstly, you can use an alternate USB cord.
  2. You should also go for changing the existing dock connector.
  3. Also, check whether you can turn off all applications that can cause an interruption in the USB connection.

Solution 3- Disable the Anti-virus Program

Anti-virus applications have firewalls in them. These firewalls are widely known to interrupt and interfere with the operations of many applications. The iPhone Update Error 4000 can occur when the firewall of your anti-virus hampers certain processes linked with iTunes.

You should temporarily disable the firewall of your anti-virus software. This might help you get rid of the error. However, if the issue still exists, you can consider uninstalling the anti-virus software.

Solution 4- Restart the iPhone device and the computer

This a simple and yet effective solution. Many users have reported that the error was successfully removed when they restarted their devices. Although this might not yield the desired result for you, you can still give it a try.

First, you need to detach your iPhone from the computer. Then simply give the iPhone and the computer a restart. Once you do this, connect the iPhone back with the computer. Now check if you can update your iPhone through iTunes.

Solution 5- Plug iPhone Directly with the Computer

If your iPhone is connected to the keyboard or with the USB hub via USB cords, you can try to change this arrangement. You should first unplug your phone. Then, you need to connect it directly to one of the USB ports of your computer.

Although the success rate of this solution isn’t quite high, you can always give it a try.

At the end of the day, error 4000 is a frequently occurring issue that iPhone users can experience while updating their devices. The solutions presented here will help you to eliminate this error without the help of any professional technician. 

Let us know, whether these solutions were helpful to you. We would love to get your feedback. You can communicate with us in our comment section to know more about the iPhone Update Unknown error 4000.

Frequently Asked Questions

1. How do I fix Error 4005?

Update to the latest version of iTunes. Give your iPhone a force restart. Try giving your computer a restart. Now, use the DFU mode to solve the error. Connect your iPhone directly with your computer using USB cables. Finally, update the Operating System of your computer.

2. What is DFU mode?

Device Firmware Update mode is the condition when an iPhone can interface easily with iTunes. DFU mode is necessary to alter or update the firmware of the iPhone, either for troubleshooting or for personal requirements. This mode is used mostly when the iPhone fails to get an update for some technical or hardware related issues.

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