Support Samsung galaxy S3 - Touch screen not working

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http://androidforums.com – Hi Yesterday, I broke my samsung galaxy s3 screen :( Now all i get is a black screen. And with no way to access anything that is on the itnernal memory on my phone. When I plug my phone, I usually have to bring down the menu bar, and click the mount option. However, as the phones touch screen doesnt work, and the screen is just black, I dont know how to back up my data. Does anyone know if there is anyway of backing up my phone? Thanks :) (General)