Android phones, apps and tablets

My nephew forgot his lock screen pattern for his Wildfire S, and doesn't know his google account details. Just advised my sister via txt on how to factory reset his phone.

No other way to get back into the phone right?

Could he try to find out his google details by trying his emails on google via pc? of if he at least knows his username then type 'null' as a password
http://einartysen.se/unlock-android-phone-after-too-many-pattern-attempts/

Or try calling the phone and see if you can access the menu through there

Otherwise, I don't have any ideas apart from a reset