: Power off the device, hold Volume Down and Power while plugging into the computer, then continue holding until the screen stays black but 3uTools detects "DFU Mode". Software & Driver Updates Update 3uTools
This is the most frequent cause. If a cable isn't MFi-certified or has internal fraying, it can drop the connection the moment the restore process puts a high load on the data transfer. 3utools error unable to restore idevice--75-
| April 21, 2026
Open the 3uTools Official Site to ensure you are on the latest software version. Navigate to the tab at the top. : Power off the device, hold Volume Down
Some users have noted compatibility issues with newer versions of Windows. If you are on Windows 11, ensuring your version is 23H2 or lower may resolve the "Unable to Restore" prompt. 4. Clear Host Files Sometimes, third-party software modifies your computer's file to redirect Apple's update servers. Navigate to C:\Windows\System32\drivers\etc\ file with Notepad. Check for and delete any lines containing gs.apple.com Summary of Causes & Solutions ERROR: Unable to restore iDevice(-75). - Apple Community | April 21, 2026 Open the 3uTools Official
Case A — Cable/Port Fault: