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i’ve broke the original screen before so it wasnt my first time repairing my screen. it was my second. The first time, i &&^&@@ up alot and lost some screws, but it ended up working and that was cool. And once again, i broke the new screen a week ago so i bought the screen i used to repair before. i did the same exact thing as before but it doesnt turn on. iTunes recognizes it but blank screen. no nothing, no vibrations, no sound. i tried restoring it through dfu mode but nothing works. PLEASE HELP ME!!!!

This has happened to me a few times, this is a backlight problem caused by a faulty screen. Return the screen to wherever you got it and get a new one and your problem should be fixed.