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I was carrying my tablet then i was going to take my necklace off then my hand hit the tablet then my tablet had all blue lines on the screen and there was a crack in the corner, i felt the crack and all i felt was nothing but the crack was there can someone help me i really need help?

This happends when the LCD brakes or cracks you will need to buy a replacement to fix those lines Galaxy Tab A 7.0 (Wi-Fi) Screen