"Is the display the same for the 4 and 4s?"に関する回答I would like to ask you one very simple question :) Can I use my old iPhone4 GSM ! screen in new iPhone4S GSM, please ? Because, today I did this, changed the bezel, installed everything ... and turned on my 4S and first I saw "white apple" (perfect) but than some display BIG problem ... many many horizontal lines, changing colors ... Did I something wrong or I can not use screen from GSM iPhone 4 in 4S ? Thanks.