Help - Broken iPod Touch pad & wanted to recover pics

[iMore Question]

Hello. I have an iPod 5 with a broken touch pad (it doesn't recognize my finger) and lots of valuable photos in there. When I turn it on, it says 'Slide to update' (because the iOS is not the last one), but obviously I can't do it. Siri is not working too, and when iTunes detects it, I can't click the 'Trust button'.

I am a little screwed.

Help please?