DFU Mode
N/A
DFU模式
DFU Mode · N/A · DFU模式 · dee-ef-yoo mode · Device Firmware Update mode · Operating Systems · ios · restore · troubleshootingOperating SystemsDevice Firmware Update mode/dee-ef-yoo mode/
Also known as: Device Firmware Update mode
Last updated August 9, 2026
Definition
DFU (Device Firmware Update) mode is a low-level iPhone/iPad state used for restores when normal Recovery is not enough — it can erase the device.
Real-World Example
A failed iOS update that needs a computer restore sometimes requires DFU mode.
References
Related terms
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