The IPhone Is Unable To Restore An Unknown Error Occurred 40 Error

The IPhone Is Unable To Restore An Unknown Error Occurred 40 Error

There are numerous easy ways to fix this kind of problems.

1. Restore iPhone by instruction manual

2. Reboot the phone

3. Update the iTunes than to the latest version

4. Run iPhone’s Restoration or Recovery Mode

5. Reset Network Configurations of the iPhone

6. Do a Stock Totally reset of the cell phone

7. Clear the Cookies, Caches, and Background of the iPhone

8. Replace Battery of the phone

9. Unplug an extra UNIVERSAL SERIAL BUS(USB) Devices

The IPhone Is Unable To Restore An Unknown Error Occurred 40 Error

If you want to restore your iPhone, first, make sure you have the latest iTunes installed on your computer. If you haven’t updated yet, go to iTunes Download to download the latest version. Once downloaded, just run the setup file to update your existing iTunes. Once iTunes is updated, connect your iPhone to your computer via the USB cable then launch iTunes on your computer.

Select your device in iTunes and then try restoring your phone again. See if this works. In iTunes, error 40 may indicate a hardware problem with your device but normally it is caused by outdated or incorrectly configured security software. Visit Resolve Issues between iTunes and Security Software for more information.

When restoring your phone, make sure your computer’s date and time settings including the time zone are correct. You should also use an administrator account.