Repairing Buttons on Casio fx-300ES Calculator

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Repairing Buttons on Casio fx-300ES Calculator: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Repairing Buttons on Casio fx-300ES Calculator: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Repairing Buttons on Casio fx-300ES Calculator: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Carefully lift the circuit board while leaving the grey rubber piece face down.
Simply flip the circuit board and the screen over but do not remove them fully.
Make sure the calculator is face down.
Buttons are loose do not flip calculator over.

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