Select softkeys with keyboard?

[stainless20]

I need to send my TP2 back for warranty as the Touchscreen stopped working. Therefore I need to relock the phone but there is a prompt during the process that requires the softkeys to be selecting (yes/no).

My screen is disabled so only the keyboard is an option. Doh!

Anyone have insight into how to do this with the stock keyboard/keys?

Thanks!