Learn how to fix iPhone error 51 with our step-by-step guide. Troubleshoot and resolve this common issue quickly and easily.

Facing iPhone error 51 can be frustrating, but don't worry. In this guide, we will walk you through some simple steps to help resolve this issue. By following these instructions, you can get your iPhone back up and running smoothly in no time.


Step 1: Delete .IPSW file extension


To force iTunes to download a new file, follow these steps:


For Windows users:

- Go to C:Users*your account*AppDataRoamingiTunesiPhone Software Update.

- Locate the folder named "iPhone Software Update" and open it.

- Delete any files with the .IPSW extension.


For OS X users:

- Open Finder and navigate to the iTunes folder.

- Look for the "iPhone Software Update" folder and open it.

- Remove any files with the .IPSW extension.


Step 2: Replace faulty USB cable or battery




Sometimes, a faulty USB cable or battery can cause error 51. Try these tests:


Remove all USB devices except your mouse and keyboard from your computer.


Connect the USB cable directly to your computer's USB port instead of using a hub.


Borrow a high-speed USB cable from someone you trust and see if it makes a difference.


Test the voltage output of your iPhone's battery. If it's below normal levels, consider replacing it.


If none of these steps work, it might be best to contact your nearest Apple store for further assistance.


Step 3: Log in as an Administrator account


If your current user account is not an administrator account, follow these instructions:


Log out of your current account on your iPhone.


Log in using an administrator account that has sufficient privileges for software updates.


(Note: If you are not sure how to do this, seek assistance from the owner of the device.)



By following these friendly steps, you should be able to fix iPhone error 51 and get your device back on track. Remember, if you encounter any difficulties or need additional support, don't hesitate to reach out to Apple's customer service or visit your nearest Apple store. Stay connected and enjoy your iPhone hassle-free!




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