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Top 5 Ways to Fix iTunes Error 3004 During Updating or Restoring iPhone

March 29, 2017 04:22 pm / Posted by Jerry Cook to Fix iTunes
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“I recently tried to upgrade iOS 10.2.1 on my iPhone but get the iPhone upgrade error 3004 saying ’The iPhone ‘iPhone’ could not be restored, an unknown error occurred (3004)‘. Does anyone know how to fix it?”
- Apple Community


fix itunes unknown error 3004

Having problem with iTunes error 3004 while upgrading or restoring your iPhone 7/7Plus/6s/6/5s/5 and iPad, iPod? iTunes Error 3004 usually occurs when iTunes cannot get a response from the update server. Here we collect the top 5 methods that will help you fix iTunes error 3004 on Windows 10/8/7 and Mac. Firstly, make sure that your iTunes is updated to the latest version.

Way 1: Check the Network Connection

iTunes error 3004 is usually due to iTunes is unable to connect to Apple firmware verification server to verify your device. So the first thing is check the network connection you are using. If the network doesn't work, restarting the network modem or router or use different internet if possible.

Way 2: Switched off Antivirus firewall on Your Computer

Antivirus programs could create connection or software conflict with iTunes. Switched off Antivirus firewall completely or temporarily uninstall your security software.

Way 3: Check your Firewall Settings

A firewall sometimes may mark the iTunes as an insecure or suspicious connection and block all access to the internet. If you are using Windows Defender, disable it a while and update your iPhone. If you use third-party firewall, check whether iTunes is blacklisted or simply disable the firewall for a specific time period.

fix itunes error 3004

Way 4: Edit the Hosts File on Your Computer

Sometimes your computer's hosts file is causing communication issue between iTunes and Apple's servers. In this case, you can edit the hosts file on your computer to fix iTunes error 3004.

On Windows 10/8/7:


fix itunes error 3004 when updating iphone

On Mac OSX:


how to fix itunes error 3004 on mac

Way 5: Best Way to Fix iTunes Error 3004 and Upgrade Your iPhone with ReiBoot

All methods above can't solve the iTunes error 3004 for you? The best and easiest way to fix iTunes unknown error 3004 is using ReiBoot. It offers an one-stop solution to fix iTunes error 3004 and upgrade your iPhone, iPad or iPod and is especially useful when your iOS device get stuck during updating or restoring.

To get started, free download and install ReiBoot on your computer.

Download ReiBoot Now:

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Size:2.6MB
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Size:9.3MB
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So, we have list the top 5 ways to fix iTunes error 3004 when upgrading or restoring your iPhone 7/7 Plus/6s/6/5s/5 and iPad, iPod. We hope our solutions would help you solve your problems.

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