i phone 12 promax forgot password

Are you asking about your Apple ID password or your phone’s passcode?

For your Apple ID password, see→If you forgot your Apple ID password - Apple Support

For your iPhone unlock passcode, If your iPhone has iOS 15.2 or later installed, check out this link→How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support

Otherwise, see this Apple support link→If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

Or watch this companion video ⬇️

After restoring the phone using one of the methods above you can restore your most recent backup.