How can I fix an inverted / pink flickering screen on my Samsung Tab 3 GT-P5210?

With a loose LCD cable, the display will normally look like this, most people will think the LCD is bad with pinky colors and black spots:

Discoloration or more pink than others is loose LCD cable. Open your tablet, disconnect, reconnect the LCD cable ( right side ) and secure the locking tab with tape will prevent it happen again. Make sure the white line on cable aligned with the one on main board. Don't put back the rear cover, test it by plug in your USB cable to charge, press the HOME button, the green battery icon should see on the screen in the black background. If you see the pinky icon, your LCD cable is not connected properly.

Watch this video how to open the rear case and how to disconnect cable, this case you only need the LCD cable.

https://www.youtube.com/watch?v=1L0ihzx3oos

This tool will open faster, just pressing around the frame to open it. The above tutorial video just shows how to open, but it's a slow way.
I just need under 2 minutes to open the case of this tablet.

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