If 3uTools continues to fail due to local folder access, download the official firmware from and use the
Alternatively, download the correct firmware for your device directly from , then in 3uTools "Easy Flash," click to select the file. Summary Checklist for 2026 Probable Cause Error 13 during Backup Permission restriction Run as Admin / Change folder path 3uTools stuck/No access Corrupted drivers Toolbox -> Repair Drivers Error 13 during Flash Corrupted firmware Re-download IPSW 3utools Failed To Access Folder Error Code 13