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Hi i changed an lcd screen on a tab 4 now i just get a blank screen when i turn it on ive checked the lcd and it works fine on another tab but ive noticed the old lcd that half work is blank aswell any help wouild be gtreat

Hello, This could be caused by a broken connector. Please look at the connector on the motherboard and the cable. Then do what you need to do from there. Thanks, Keegan Bourque