Hello guys! I am experiencing iPhone update error 4000 when I try to update my iPhone 15.4 to iPhone 16.4. This code generates an error message which says that “iPhone could not be updated. An unknown error (4000) occurred”. I really don’t know why am I facing such error on the screen. Will you please provide working ways to get rid of iPhone update error 4000 permanently? How can I restore my deleted data which I have lost during fixing the error. I am eagerly waiting for your response. All the suggestions are strongly appreciated. Thanks a lot in advance.
About iPhone update error 4000:
iPhone is one of the most popular smartphone which has been designed by Apple Inc. Due to its advanced features, it has gained popularity among the users. In fact, company always releases the updates to provide more features and security. However, the worst situation occurs when user detects iPhone update error 4000 when they attempt to update the operating system. Due to such error, you will be unable to proceed and it can also results to crashing of the device. Many users also faces data loss issue after detecting such error on the screen.
Main Causes of iPhone update error 4000:
There are lots of factors which are responsible for iPhone update error 4000 on the screen. Some of the common causes are mentioned below:
- Unknown bugs or glitches in the device.
- Using outdated version of iTunes.
- Security apps are causing interruption in upload.
- You are using your device in low battery mode.
- Sometimes passcode also creates error while uploading operating system.
How to Get Rid of iPhone update error 4000 Manually?
In this section, you will learn different ways which can help you to get rid of iPhone update error 4000 manually. The important points are mentioned below:
Method 1: Restart your PC as well as iPhone
Sometimes, unknown bugs or glitches can stop the users from updating their device. So, you are advised to reboot your PC as well as iPhone to fix the error.
Method 2: Update iTunes
Sometimes, using the outdated version of iTunes also causes annoying error during iOS update. So, firstly, you are advised to update the iTunes by following the given steps:
- Open Microsoft Store in your PC.
- Go to More options and choose Downloads and Updates.
- Now, tap on Get Updates. If found, download it now.
- For Mac users, open iTunes.
- From menu bar, tap on Help and select Check for Updates option.
Method 3: Try using Different USB Cable
It is also possible that you are using faulty USB cable to connect your iPhone with the PC. So, you are suggested to change the USB cable or even port.
Method 4: Charge your iPhone
When you will try tp update the iPhone then make sure that the battery of your device is fully charged. It can create error during the update with iTunes
Method 5: Disable Security Apps
As you know, many users keeps antivirus and firewall apps for increasing security in their device. Sometimes, it can create errors while updating the software. So, you can try to disable the security apps and try again.
Method 6: Use Different Computer
You can also try to open iTunes on different PC. It might be possible that iTunes is unable to connect with the Apple server due to third party apps in the PC. So, you can authorize iTunes on another PC then try to update your device. To authorize the other PC, follow the given steps:
- Click on Account and choose Authorizations.
- Now, tap on Authorize this Computer,.
- You need to enter your Apple ID and password.
- Finally, click on Authorize option.
Method 7: Disable the Passcode of iPhone
It seems strange but many users shared in the forums that they have fixed iPhone update error 4000 by disabling the passcode. To do so, follow the given steps:
- Open the iPhone Settings.
- Click on Touch ID & Passcode option.
- Now, tap on Turn Passcode off.
- Reboot your device.
How to Restore Lost Data after iPhone update error 4000?
If you have accidentally lost your important data while fixing the error then no need to panic. We suggest you to make use of iPhone Data Recovery Software. It is one of the advanced tool which is capable to conduct deep scanning in the system in order to regain the deleted or corrupted data in their original quality. It is compatible with different version of iOS devices. Due to user-friendly interface, it can be handled by the non-technical users also. So, what are you thinking for, download the trial version of the tool without making any delay.
