iPhone Firmware Flash Tool: A Comprehensive Guide

To flash manually using iTunes or Finder, you must download the correct IPSW (iPhone Software) file for your specific device model.

Data Loss: Flashing a device (especially a "Restore") typically wipes all data. Always back up your iPhone before proceeding.

(Mac) while clicking "Restore" to manually select a downloaded IPSW firmware file 3uTools (The All-in-One Alternative)