Guide worked well, took about an hour. Thought I lost one of the tiny plate screws and searched forever then realized the WiFi cable cover is only one screw.
Because the antenna is difficult to start to pry up, suggest you do what I did and unscrew the hinge screw that is just under the antenna as this works to break the seal on the adhesive. Then of course screw it back in and pry/insert with your plastic tool to detach the rest of the adhesive.
Take your time and if you are old like me get a bright light and a magnifying glass/headset. Helped getting the little screws in and making sure the connectors for the antenna, display and power were in properly.
The display is glued together and if someone can get it to open without breaking the glass or tweaking the thin metal frame then it woudl be great. I just opened mine as the glass is cracked. There is no way to get it apart without ruining it.