Well, you're going to be opening the phone anyways, so just take a peak and see if you need the large of slim flex cable. You can get a replacement lcd for the small cable [http://www.amazon.com/gp/product/B00427SHXO/ref=as_li_ss_tl?ie=UTF8&tag=rab777hp-20&linkCode=as2&camp=217145&creative=399373&creativeASIN=B00427SHXO|here], and if you have the big cable then [http://www.amazon.com/gp/product/B004RDGTJ2/ref=as_li_ss_tl?ie=UTF8&tag=rab777hp-20&linkCode=as2&camp=217145&creative=399373&creativeASIN=B004RDGTJ2|here].