You probably should add that the battery is held in the tray with some glue strips. It took a bit to carefully remove the battery from the tray without bending the tray too much. Also, the replacement battery I had was slightly smaller than the OEM battery. When putting back together make sure you place the battery in the tray so the battery is close enough to the battery connector and you can reconnect the battery without pulling on the connector wires.
I found using a #00 Philips worked better for my removal.
Great guide and good instructions. I was able to swap out a faulty motherboard without any problems.
Two things I found that might need some addition/update on the instructions;
1) I found a #00 Phillips easier to use than the recommended #0 Phillips
2) You should probably add one more step to explain how the camera is attached with a ZIP socket to the underside of the motherboard. That would help in reconstructing the tablet in case, like me, your camera does not come up with the motherboard.
Great work and thanks for the help!