Are you seeing this error during a or while attempting to flash your device? All error codes - Facebook
The primary suspects are Windows User Account Control (UAC) and folder permission attributes. If 3uTools is launched without administrative privileges, it may lack the authority to write to protected directories, such as C:\Program Files or system temp folders. Similarly, the target folder—perhaps a custom backup location on an external drive—might have permissions explicitly denying write access to the "SYSTEM" or "Authenticated Users" groups. A second, frequent culprit is interference from antivirus or real-time protection software. Security suites, wary of any tool that deeply accesses another device's file system (like 3uTools does with iOS), may quarantine or block write operations, triggering a permission failure. Lastly, the physical connection or driver state can masquerade as a folder error: if the iOS device is locked, untrusted, or in a recovery state where its file system is not fully mounted, the host PC sees an inaccessible folder.
Sometimes, an unstable connection disrupts file transfers, leading to premature closing of access to the folder. Use an original Apple Lightning/USB-C cable. 3utools failed to access folder error code 13 new
: A broken bridge between the 3uTools software and Apple's underlying connectivity architecture causes data transmission timeout and directory crashes.
Sometimes the issue is with the specific folder on your computer where you are trying to save files. Are you seeing this error during a or
The 3uTools error is a common permissions-related issue that typically occurs during backup, restore, or flashing processes when the software cannot read from or write to a specific directory on your PC. Root Causes
If 3uTools keeps trying to write to a broken directory (like a disconnected network drive or external HDD), you must redirect it. Lastly, the physical connection or driver state can
If your hard drive has errors, Windows cannot read/write files properly. Open Command Prompt as Administrator.
Before jumping into the fixes, it helps to understand exactly why 3uTools is failing to access your directories:
The software tries to modify a protected system folder without elevated Windows permissions.
: Ensure the destination folder (often where you save IPSW files or backups) has full read/write permissions for your user account.
