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LCD problem 27” iMac late 2013 Hi All, Internal Dispaly is not working - external OK Diagnostic LED’s - 1,2,3, 4 ok Replaced LCD cable ( 2 pins were bent and sticked to each other ) I did a SMC/PVRAM Reset i cannot Run hardware test because i cant see anything Thank you

Ouch! Sadly in the process of opening the system you managed to damage the LCD panel. You’ll need a new display assembly to fix this properly 27” iMac 27" LCD Display Assembly (12/13) Apple P/N: 661-7169. LG panel ID: LM270WQ1 (SD)(F1). You’ll also need a new set of [linked product missing or disabled: IF174-005-1] as well Using the wrong tools and/or not following the proper techniques is the most common cause iMac Intel 27" EMC 2639 Display Replacement