If you have not changed the default settings, 3uTools stores downloaded firmware in your local app data folder.
If a connection error breaks an active package transfer, you can download files directly from external repositories like IPSW.me or the official 3uTools Firmware Catalog using a browser. Once saved, import them into the application using these steps: 3utools ipsw location top
One of the top reasons advanced users search for the IPSW folder is to import custom firmware that is no longer signed by Apple. If you download an older version of iOS from a repository like ipsw.me, you can bypass the 3uTools downloader entirely: If you have not changed the default settings,
Select (or click the Open Folder button). If you download an older version of iOS
For the portable version, the IPSW files are typically found in a subfolder named Firmware inside the portable application’s root folder. For example:
Some users report finding firmware files in both a Firmware folder and a 3uTools-Firmware folder. This may occur if you have used multiple versions of 3uTools or performed an upgrade installation. You can consolidate them by moving all IPSW files into a single folder and then adjusting 3uTools’ references (e.g., by creating a symbolic link or using the Import feature).