: If you've manually renamed a backup folder, 3uTools may lose track of it. Ensure the folder name matches your device's UniqueDeviceID (UDID) in lowercase. You can find your UDID in 3uTools under Device Details .
Sometimes the default storage folder has restricted permissions. Open 3uTools and go to (gear icon) > Locate the "Download Path" and change it to a simple, non-system folder, such as C:\3uTools_Data\ 3utools Failed To Access Folder Error Code 13