What’s the difference between Recovery Mode and DFU mode?
恢复模式和DFU模式有什么区别？
DFU stands for Device Firmware Update. You can put your iPhone into DFU mode to make modifications to your iPhone’s software.
DFU mode is distinct from Recovery Mode, which you can use to restore your iPhone’s settings, fix freezing and rebooting issues, or upgrade to the latest iOS. DFU mode allows you to do these things, too, alongside more advanced actions, such as downgrading your iPhone or unlocking your SIM.
DFU代表设备固件更新。您可以将iPhone置于DFU模式，以对iPhone的软件进行修改。
DFU模式与恢复模式不同，恢复模式可用于恢复iPhone的设置，修复冻结和重新启动问题或升级到最新的iOS。 DFU模式还允许您执行这些操作，同时执行更高级的操作，例如降级iPhone或解锁SIM卡。