When Apple iPhone 4 or 4S has impact damage to the digitizer (or commonly called "screen") there might be some collateral damage such as faulty home button, speaker problem. At times proximity sensor does not work (mean during call, the phone screen stays on with digitizer being active).
As a consumer, you should not pay for any "inspection" fee (e.g. $45). For more tips of getting the right place and the real professional to repair your expensive iPhone 4 or 4S.David Lim
www.drmobiles.co.nz
1, Huron Street, Takapuna, Auckland 0622
Tel: (09) 551-5344
Mobile: +6421 264-0000