Answer in English:

**If you erase all settings on your iPhone, the following will happen:**

* All of your personal data, including apps, photos, music, videos, and contacts, will be deleted.
* Your device settings will be reset to their default values. This includes things like your language, region, and time zone.
* Your network settings will be reset, which means you will need to re-enter your Wi-Fi passwords.
* Your Apple ID will be removed from your iPhone.

**It is important to note that erasing all settings on your iPhone is a **permanent** action. Once you have erased all settings, there is no way to recover your data or settings.**

**Before you erase all settings on your iPhone, be sure to **back up your data to iCloud or iTunes.

To erase all settings on your iPhone:

1. Go to Settings > General > Reset.
2. Tap Erase All Settings.
3. Enter your passcode when prompted.
4. Tap Erase All Settings again to confirm.

**Your iPhone will then restart and all of your settings will be reset to their default values.**

read more >>

The iPhone offers reset options less drastic than ��Erase all Content and Settings.�� The ��Reset all Settings�� option keeps your apps and data but resets personal preferences and network settings. ��Reset Network Settings�� removes any Wi-Fi network information, including connection passwords.read more >>