One by Wacom Medium Disassembly

crwdns2935421:0crwdne2935421:0 crwdns2935423:0crwdne2935423:0

crwdns2935425:03crwdne2935425:0

crwdns2935419:0crwdne2935419:0

crwdns2936315:0crwdne2936315:0

crwdns2936323:0crwdne2936323:0

crwdns2931653:03crwdne2931653:0

One by Wacom Medium Disassembly, Pry it open: crwdns2935265:00crwdnd2935265:01crwdnd2935265:02crwdne2935265:0

One by Wacom Medium Disassembly, Pry it open: crwdns2935265:00crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

Pry it open

Use plastic pry tool to open the casing
To make this process easier, start prying from corners
Continue prying on every side till two casing sides are separated

crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0