| Fetchmail | 2026-05-08 |
During a standard restore, iOS checks the battery's health and voltage. If your battery is heavily degraded or failing, Apple's restore protocol will abruptly abort with an error.
Hardware diagnosis (if suspected)
Once 3uTools detects "DFU Mode" (instead of Recovery Mode), attempt the flash again. DFU mode is a deeper restore state that can bypass many software-level errors.
Open 3uTools and click on "Check for Update" at the bottom right.
Ensure that Apple Mobile Device Support is up to date. 3uTools relies on these drivers to talk to the hardware; if they are corrupted, the restore will fail. 3utools error unable to restore idevice--75-
It is frequently categorized as a low-level error indicating that while the device is in recovery mode, the computer cannot properly push the final firmware components to the NAND chip. Primary Causes of Error -75
Antivirus programs or firewalls blocking the connection to Apple's verification servers. Step-by-Step Solutions to Fix Error -75
Turn off your Windows Firewall before hitting the "Flash" button.
When iTunes prompts you, click to let Apple's native software handle the firmware extraction and installation. Advanced Hardware Checklist During a standard restore, iOS checks the battery's
A: Yes, 3uTools is compatible with both Windows and macOS operating systems.
The physical pins inside your iPhone's charging port might be worn out or corroded, allowing charging but failing under heavy data transfer loads.
Open 3uTools, go to Toolbox > iTunes Utility > Host Clean . Clean the host files to ensure no old IP addresses are blocking ://apple.com .
Try iTunes restore — if iTunes succeeds, use it; if it fails with an Apple error code, use that to target troubleshooting (e.g., 14 — USB issues, 9/4013/4014 — hardware/communication). DFU mode is a deeper restore state that
Use a high-quality USB-A to Lightning or certified USB-C cable instead of aftermarket variants.
Corrupted Apple Mobile Device USB drivers.
: Always use an official Apple MFi-certified Lightning or USB-C cable.