First, you need to heat the tablet to open glass background. Be sure to heat 10 minute and be careful to only heat edges, otherwise components of tablet can be broken. Make sure you have your safety glasses and gloves on.

Step 1: Step 2: Open the Case

Now, go with a straight knife that doesn't have so much cutting capability. Move the knife slowly. If you rush like I do, you can break the case while opening.

Step 2: Step 3 Detach Battery

There will be a socket which will be connected from battery to mainframe. Detach it carefully, and put away the battery. Remember, the battery used on this tablet, can explode if not handled carefully.