| Category | Specific Cause | Likelihood | | :--- | :--- | :--- | | | Damaged, frayed, or non-MFi certified Lightning/USB-C cable. | High | | Power Delivery | USB port cannot supply stable 500mA-2.1A during restore (common on front-panel PC ports). | High | | Driver/Software | Corrupted Apple Mobile Device USB driver (Windows) or stale usbmuxd (macOS). | Medium | | Security Software | Third-party antivirus or firewall intercepting USB bulk transfers. | Medium | | Host Controller | Outdated USB chipset driver or USB 3.0 port operating in fallback mode. | Low |
Error -68 occurs when the Apple Mobile Device Service (AMDS) or iTunes/Finder cannot maintain a stable data stream to the device during the flash (firmware write) phase. Unlike error 9 or 4013 (hardware/NAND issues), error 68 is almost exclusively . unable to restore idevice -68
If the above troubleshooting steps do not resolve the issue, try the following advanced solutions: | Category | Specific Cause | Likelihood |
Plug your device directly into the computer's USB port. Do not use keyboard ports or USB hubs, as these may not provide sufficient power or stable data transfer. | Medium | | Security Software | Third-party