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Repairing Buttons on Casio fx-300ES Calculator

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Repairing Buttons on Casio fx-300ES Calculator: crwdns2935265:00crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Repairing Buttons on Casio fx-300ES Calculator: crwdns2935265:00crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

  • Carefully remove the back plate to reveal the circuit board and the battery.

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