Frequently Asked Questions

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12E, 11C, and 15E Calculator Apps

1. I can hear the key click sound, but nothing shows up in screen. how to fix it?
Please restart the app to turn on the calculator. the calculator is automatically turned on/off when the app opens/closes.

2. How to copy the calculation result in 12E Financial Calculator App to the clipboard and paste it anywhere?
Long press the display number to see the copy command menu, and click it to copy the number to the clipboard. then you can paste it anywhere.

3. Android display issue: the last row of buttons is cut off
Please set the default font on your device to a smaller size to let the missing buttons come out.