i want to reset my phone to factory setting

Hello khaliel,

See these support articles:

How to erase your iPhone, iPad, or iPod touch

"Learn how to wipe information from your iPhone, iPad, or iPod touch and restore your device to factory settings." Without using a computer. Does not reinstall iOS.

https://support.apple.com/HT201274

Restore your iPhone, iPad, or iPod to factory settings - "A factory restore erases the information and settings on your iPhone, iPad, or iPod and installs the latest version of iOS or iPod software." - http://support.apple.com/HT201252

Did you see my edited post?