How To Fix An Unknown Error Occurred (−1) − Iphone, Ipad, Ipod Touch


“When I connect my iPhone to iTunes, it gets stuck at the iTunes logo. When I try to restore or recover, it goes fine till around 60%. Then it tells me, “iPhone could not be restored unknown error 1, does anyone know how to fix iTunes error 1?”-Apple Communitiy


Many users restore their iPhone in order to fix some software problems, and it usually works really well. But sometime they may notice that an error 1 appears and they cannot finish the restoring, this is one of the common iTunes errors. iTunes restore error 1 is an error indicates that there is an issue with the hardware itself. Apple recommends that you perform troubleshooting security software issues and restore your device in a good, working computer. If the problem still exists, you may need to go to the Apple service. But before that, you can always try the solutions recommended in this article to get a free repair of iTunes error 1 by yourself.

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Part 1: Common Solutions to Repair iTunes Error 1

Here we have rounded up the some common ways of fixing and repairing iTunes error when restoring as well as upgrading or downgrading your iPhone X/8/8 Plus7/7Plus/6, iPod and iPad.

Solution 1: Update iTunes to the latest version

In many cases, iTunes error 1 occurs due to old iTunes version and you can simply get this error repaired by upgrading your iTunes version. If you don”t know whether you have installed the latest version of iTunes, you can check it according to the following steps:

Windows: Choose Help -> Check for Updates

Mac: Choose iTunes -> Check for Updates

After checking, simple download and install any available iTunes updates.

Solution 2: Disconnect other USB devices that connected on your computer

USB devices can sometimes mess up data communication between iTunes and your iPhone, here is what you should do:

Disconnect any devices connected to your computer such as cameras, printers, dangling cords, card readers, and so onConnect your iPhone to its cableRestart your computerLaunch the iTunes again and have another try of restoring

Solution 3: Deactivate or uninstall antivirus software or firewall on your computer

Software like antivirus or firewall can protect your computer from the attack of other certain data. However, you need to keep these programs up to date and configure them to protect your computer effectively. If there”s a router on the local network, additional security policy applied on the router may block some data required to restore your iPhone.

Part 2: Fix iTunes Error 1 with Free TunesCare

As said above, if you are failed to update to the latest iTunes version, I think TunesCare is the best choice to detect your iTunes problems and reintasll your iTunes to the latest version. Except the mentioned feature, TunesCare is also a advanced tool to fix all iTunes errors in one click.

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If your iPhone performs abnormally, you will see the interface below. Click “Repair iTunes” to download iTunes drives and repair iTunes following the wizard.


Part 3: Bypass iTunes Error 1 with ReiBoot

Error negative 1 can also be iOS system error at the boot level. This can simply be fixed with a restore to factory defaults. But some users have the truoble in restoring their iPhone. They find that the devices stucked in recovery mode. If you are facing the same problems now, we recommend you ReiBoot to exit recovery mode and repair your iPhone operating system in one click.


3. Download and install ReiBoot on your computer and then run the software and connect iPhone to computer. Click “Start” button once the device is recognized.

4. Then,you”ll see an interface like below. You can click “Standard Repair” to repair system.


5. The whole process will take few minutes; do not disconnect the device during the process. Once the repairing process ends, your iOS device will boot up as normal.



Done! Hope the methods in this post can help you solve your annoying iTunes errors and restore iPhone successfully. If you still have questions in fixing and bypassing the error 1 or other iTunes error, you can leave us a message in the comment section, we”ll reply you as soon as possible!

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