OLPC XO-4 Touch Mouse Buttons Controller Replacement

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OLPC XO-4 Touch Mouse Buttons Controller Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

OLPC XO-4 Touch Mouse Buttons Controller Replacement: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

OLPC XO-4 Touch Mouse Buttons Controller Replacement: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

You should now be looking at the bottom of the lower case.
Remove the eight 4mm Phillips #1 screws attaching the green trim pieces to the lower frame.
Pry off the front and side trim pieces.

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