Can't backup broken iPhone 6 without entering pin I have recently broken the screen on my iPhone 6 and want to back everything up before I take it into apple to be repaired. 

My problem is when I go to back the phone up in iTunes, it wants my pincode. I can't put my pincode in as my screen is broken!

The screen seems to be responding to key presses as it vibrates when I touch the screen where I think the numbers are, but this still doesn't work.

Does anyone know a way I can get a backup of my phone despite this issue?
As far as I'm aware, entering the pass code is a security feature when you backup for the first time to a different iTunes/computer. You can't get around it, however its possible that Apple will be able to repair the screen without wiping the phone. Maybe even mention you haven't backed up the phone when you take it to get repaired and see if they can do anything for you