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Hello, so basically i replaced a touch screen on an ipad mini one and after there were lot of lines in lcd. i thought i have broken the lcd and changed a new one but there is no display on new lcd. i have changed 2 new lcds but no dispay on both ofthem but if i put the original lcd back display comes on with lines. apparenly there is no crack on original lcd. So what should i do.
The lines on the old display is probably from a bent or creased ribbon cable. I’m not sure why the original panel will turn one while the new ones will not. Double-check the connector pins to make sure you didn’t bend or break them accidentally.