Cant back up my photos and my phone can't be used now
I am using iphone5 and MacAir 10.10.5. When i am backing up my phone onto the iTunes of MacAir, it asks me to update or restore the phone. However, I have not enough memory for updating to the IOS8. For the other choice, if I restore my phone, all the content in my phone will be gone and most important, I have not sync my content before, All the content in my phone will lose if I restore my phone.
What can I do?
My phone is now in a page asking me to connect to the iTunes. I cannot open my phone normally.
Thanks!!
MacBook Air (13-inch, Early 2015)