and try a different USB port (preferably a rear port if using a PC). If the device isn't recognized, use the iTunes Utility within the 3uTools to repair or reinstall mobile device drivers. Disable Security Software : Temporarily turn off your computer’s antivirus or firewall
If 3uTools is trying to access a restricted system folder (like C:\Program Files ), moving the target folder can fix the access error. Open 3uTools and go to (gear icon at the top right). Navigate to the Change the Download Path to a folder on your or a secondary drive (e.g., D:\3uFirmware 3utools failed to access folder error code 13 new
Here’s what users have confirmed fixes Error Code 13: and try a different USB port (preferably a
: If you have manually renamed a backup folder or moved the info.plist file, 3uTools will fail to locate the necessary data. Open 3uTools and go to (gear icon at the top right)
in the software. Additionally, keep iTunes updated, as 3uTools relies on its drivers to communicate with your device. Check USB Connection and Drivers original or certified MFi cable
, as these programs may block 3uTools from accessing specific folders or communicating with Apple's servers. Verify "Trust This Computer" : Unlock your iPhone and tap