How do I connect a disabled iPhone to iTunes?

Read the Apple Support document about what to do if you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled. Click here --> http://support.apple.com/HT204306

To forestall anticipated additional posting on the subject of what to do should you be asked for your Apple ID and password and should you have forgotten those:

If you forgot your Apple ID - https://support.apple.com/HT201354

If you forgot your Apple ID password - Apple Support

"You’ve come to the right place to reset a forgotten password, unlock your account, or recover an Apple ID."

http://iforgot.apple.com/

What to do after [or before] you change your Apple ID email address or password - https://support.apple.com/HT204071

If you still need help:

Contact Apple for help with Apple ID account security "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."

https://support.apple.com/HT204169

boot it off, hold home and sleep/wake button until screen goes black. then connect to itunne to restore factory