An outdated version of 3uTools may lack the drivers necessary for the latest iOS firmware.
If you are trying to restore in "Normal" or "Recovery" mode and getting this error, switching to is often the solution. DFU mode is a deeper state that bypasses the iBoot bootloader. Connect your device to the PC. 3utools error unable to restore idevice--75-
If you are on a restrictive Wi-Fi network (like a school or corporate network), switch to a home network or try using a mobile hotspot. 6. Verify IPSW Firmware Compatibility An outdated version of 3uTools may lack the
On certain devices, this error is a death sentence for the baseband chip: 3utools error unable to restore idevice--75-