Automatically adds a digit to the end of my entry

Automatically adds a digit to the end of my entry My calculator automatically adds a 9 to my last number every time I try to do math. For example, I type 5 + 6 and expect =11, but calculator does 5 + 69 and I get =74 :(
Asked by: Guest \| Views: 215

Total answers/comments: 3

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Guest [Entry]

Technical support just helped me fix the same issue. You need to reset the calculator. Press the "2nd" key followed by "0". Arrow down to option 2 "yes". Problem fixed.

Guest [Entry]

shorted PCB keys, try to clean the PCB keys with alcohol (To dismantle, you'll need to apply hot air on the boss around 200°C)

Guest [Entry]

Does anyone know how to do this on purpose?