What is DFU mode and how can I use it to fix iPhone 16 errors?

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Grade: Education Subject: Support
What is DFU mode and how can I use it to fix iPhone 16 errors?
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DFU (Device Firmware Update) mode is a special mode used to restore or update your iPhone 16. It's typically used when the device is unresponsive or experiencing severe software issues. DFU mode requires specific steps (usually involving pressing and holding certain buttons), and it can result in data loss. Only use DFU mode as a last resort.