If I update my itouch, will everything erase?

JosephineRongey

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Hi, I'm on itunes right now with my itouch plugged in and it asked me if I want to update my itouch to the newest version, 4.0. I clicked yes, and now it says
"Updating to iOS 4.0 will delete all media, including iTunes Store purchases. To preserve your media, apply this update on the computer where you sync music, videos, and photos."
I don't have all the music in my ipod on a computer because my old laptop crashed. So it's just all on my itouch. If I update it, will it erase everything? What should I do?
 
I have a touch too and when i clicked yes to download ios 4 it asked me if i wanted to back up all my files on my touch and i said yes. if it doesnt ask you then just back them up yourself
Hope this helps, if not try Google (or Yahoo/Bing) Searching your question.
 
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