Samsung Galaxy Tab 3 Lite Battery Replacement

Using a plastic opening tool, wedge in the seam between the screen and the case.

Rock the tool by moving it towards and away from the middle of the screen, trying to separate the tape holding the screen and case together.

This is a long process, so don't try and rush it. Also, be careful about applying pressure.

After separating the tape holding the screen and case together, slowly start taking the screen off the case from the opposite side of the side with the buttons

Locate the ZIF ( zero insertion force) connector highlighted by the red circle, as shown in the provided picture.

Use the plastic opening tool to gently lift the black ZIF connector shown within the red circle. It should just pop out with relative ease.

Use the precision tweezers and gently pull out the black cable out of its slot.

Use the plastic opening tool to gently lift black flap shown within the red circle. It should just pop out with relative ease.

Now gently pull out the yellowish orange ribbon cable, similar to how you did in Step 1.

Use the plastic opening tool and gently pry out the battery from the left-hand side.

Grab the battery and lift it up.

It should come off with no extra effort, since both the black and yellowish orange cables have been pulled out.