how do i reset my passcode on my phone
How do i unlock my iphone if i forgot the passcode?
iPhone 12, iOS 15
Question marked as
If your iPhone has iOS 15.2 installed, see: How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support
If that option is not available, you will need to use a computer. See: If you forgot your iPhone passcode - Apple Support