How to Solve iPhone Restore Error 4005

Admit it! The most annoying moment is when you discover the “An unknown error occurred (4005)” message in your iTunes while trying to update or restore your iPhone or other iOS devices. Or if there is any disconnection occurred at some point in updating or restoring the device. For a tech savvy person, an iPhone restore error (4005) may not be such a big hitch; but for those who don’t know much about the technicalities may get concerned when they get stuck in these sorts of problems. And believe it or not, these problems truly bother us.

Start to Fix iOS System

Well! You’re at the right place to get to know why the iPhone restore error 4005 occurred and how to tackle with such a situation. The reasons may be:

  • Perhaps, the iTunes software is not completely installed or downloaded.
  • Virus or malware attacks in the iOS device.
  • Corrupt iTunes related programs or files.
  • Old iTunes version can also be a reason of iPhone Restore Error 4005.

1 Fix iPhone Restore Error 4005 with a Third-party Tool

Don’t feel exasperated due to the notification that takes place while restoring your iPhone. Yes there’s no need to feel that way anymore as iMyFone D-Back is here to assist you. This user-friendly and trouble-free software assists in recovering your important files or data. Moreover, its fix iOS System functionality helps you to get over the iTunes Restore Error 4005. Read on to know the step by step guide to fix this issue.

Features of iMyFone D-Back

iMyFone D-Back or iMyFone D-Back for Mac is able to fix your iOS system problems totally using its latest feature called “Fix iOS System”,  like black screens or white Apple screen of death or a looped recovery mode.

imyfone d-back iphone data recovery

iMyFone D-Back

  • It is a multifunctional software that not just recovers your lost data in lots of circumstances but also helps you to fix various iOS system problems like iPhone/iPad stuck in recovery mode, DFU mode, looping on start and so on.
  • This software is compatible with wide range of file formats.You can recover 22+ files like your messages, call history, photos, videos and many more.
  • There will be no fear of losing data and your private information being revealed while using this software.
  • It works well with all iOS devices and all iOS verisons including the latest iOS 10.3.

download-win download-mac

Steps on Using “Fix iOS System”

1.The first step is launching iMyFone D-Back on the computer. After that, a window will appear and you need to click on “Fix iOS System” and the "Start" button on the middle.

choose Fix iOS System

2. With the help of a USB cable, connect your iPhone to the computer. When your device is detected, hit “Start”.

Start to Fix iOS System

3. Subsequently, you are required to download fresh firmware. The software will easily detect your device and will download suitable latest iOS version. All you need is to hit on “Download”.

download firmware

4. Now, just wait as downloading will take some time. Your device will automatically go through a repairing process after the firmware is downloaded.

download firmware

You will see a message on the new window “Fixing System Is Done”. Now your device will restart and it will be back to normal.

Windows version Mac version

2 Common Tips You Can Try

If even now you need some help, you can also attempt some tips to fix iPhone restore error 4005. Read on the following tips to learn more.

TIP 1. Ensure that you have the latest iTunes and OS versions

Installing latest version of iTunes will fix any error in the existing installation. It’s effortless and do well occasionally. Head to the help menu and find “Check for Updates”. It will begin checking the installed version on your computer. you are now just some clicks away to update iTunes version.

update iTunes

TIP 2. Force Restart iPhone

In order to force restart your iPhone, switch it off by pressing “Sleep/Wake” button and “Volume Down” button for 10 seconds if you own an iPhone 7 or 7 Plus. After Apple logo is visible to you, release it. And if you have iPhone 6s or earlier models, simultaneously press and hold for no less than 10 seconds the “Sleep/Wake” and “Home” button.

force restart iPhone

TIP 3. Restart computer

If you are still in need of help once having downloaded iTunes, you need to restart your computer. This will clear the issues related to iTunes error 4005.

Restart computer

TIP 4. Plug your iPhone directly into your computer

Please make sure not to plug in your iOS device into the USB hub, instead plug it directly into your computer with the USB cable. This is recommended to ensure better connection because more the number of connecting mediums, lesser will be the connection strength and slower will be the process rate.

Plug your iPhone into the USB port of your computer


If the above tips do not help, you can try iMyFone D-Back for its wonderful features. The beauty of its new “Fix iOS System” feature makes your task a piece of cake. Also, it works up to your full satisfaction providing full security and user-friendly interface. Moreover, the success rate is evident from the highly positive reviews that this software has received so far.