Interactive timed button guide and hardware schematic for flashing IPSW files on iPhone 18 Pro, iPhone Duo, iPad, and Mac.
Connect your iPhone to your Mac (Finder) or Windows PC (iTunes / Apple Configurator) using a certified USB cable.
Once your device is in DFU Mode (screen remains pitch black and computer prompts that a device in recovery mode has been detected), follow these steps to flash your downloaded IPSW firmware:
Download the matching **signed IPSW file** for your model from IPSWDownload and save it to your computer downloads folder.
In Finder (Mac) or iTunes (Windows), hold the Option key (macOS) or Shift key (Windows) and click "Restore iPhone...".
Browse and select your downloaded .ipsw file. Click Open and confirm. Finder/iTunes will extract and write the firmware.
If your restore fails with a specific error code, entering DFU Mode resolves over 95% of software-related flashing errors:
Interrupted NAND handshake. Fix by using DFU mode with an official Apple USB-C to USB-C cable directly into Mac.
Attempting to install an unsigned firmware build. Ensure the IPSW file is currently signed by Apple.
USB packet drop or host storage full. Free up 20GB+ space on your computer and restart USB ports.
Security software blocking Apple server verification. Temporarily disable third-party antivirus/firewall.
Apple Silicon Macs (MacBook Pro, MacBook Air, Mac mini, Mac Studio) also support DFU Mode to recover from failed macOS updates, black screen boot loops, or corrupted Secure Enclave keys.
Simply entering DFU mode will not delete your data. However, performing an IPSW restore while in DFU mode wipes all contents and reinitializes the file system. Always restore from an iCloud or computer backup afterwards.
If a cable or computer icon appears on screen, your device entered standard Recovery Mode instead of DFU Mode. DFU mode screens remain completely black because the operating system kernel is bypassed.
You can downgrade to a previous iOS version using DFU mode only if Apple is still digitally signing that version. Once Apple closes the signing window, IPSW restores to that version will fail verification.
Yes! DFU mode is a built-in hardware recovery feature engineered by Apple into all iPhone, iPad, and Mac bootloaders. It is completely safe and does not void hardware warranty.