: Always use an original Apple Lightning or USB-C cable to ensure full data transfer capabilities.
Navigate to the or Download tab and ensure the path points to an existing folder with no special characters in the name.
Start with the simplest and most common fixes, like ensuring your cable is working, your iPhone trusts the computer, and your software is up to date. For persistent issues, the most effective solutions are almost always administrative—either or granting it Full Disk Access on macOS . These steps directly address the "Permission Denied" meaning of error code 13. 3utools failed to access folder error code 13 new
Before jumping into the fixes, it helps to understand exactly why 3uTools is failing to access your directories:
when the program tries to interact with a specific folder on your PC or the connected device : Always use an original Apple Lightning or
Windows frequently isolates third-party software from altering user data directories. Completely close the 3uTools application. Right-click the and select Properties . Navigate to the Compatibility tab. Check the box for "Run this program as an administrator" . Click Apply and then OK . 2. Configure Windows Security and Real-Time Protection
Error 13 ( EPERM ) is a "Permission Denied" error, usually related to user permissions and security. Error 1 is more generic ("Operation not permitted"). Other 3uTools error codes are more specific to other processes, such as the negative number -105 often found when you are trying to revert a backup file that has become corrupt, or -29 when flashing firmware fails due to device-specific hardware issues. For persistent issues, the most effective solutions are
What are you running? (Windows 10 or Windows 11) Are you using any third-party antivirus software ?
Follow these updated troubleshooting steps to clear the error and get back to managing your iOS device. 1. Run 3uTools as Administrator
Select , then click Manage settings .
This error typically triggers during data exports, firmware downloads, or backups, and is frequently worsened by overprotective third-party antivirus software or corrupted Apple Mobile Device USB drivers. Root Causes of Error Code 13