90% of this was just trying to pry the case off and the battery off. The glue is very tough. For the case, at the beginning I would suggest using a heat gun/hair dryer for a single corner first for a few minutes until you can pry it open a bit and wedge something in there. Then heat up the sides for 30 seconds as you run along the sides with plastic to break apart the glue. I also made really good use of the suction cup tool for this part. For the battery, I ended up using a plastic card to wedge underneath and break the glue at the very end because my little wedgers that look like guitar picks that came in the basics kit were too short.