the home button is broken on my iphone se and im stuck on the "press home to upgrade"

the home button is broken on my iphone se and im stuck on the "press home to upgrade" screen after transferring all my data from a previous iphone. i tried to do so on itunes and i keep getting an alert to update itunes. when i check for an update it says itunes is up to date and is the current version. im stuck and am not sure what to try next