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HP Recommended
HP12C app
Android 9.0 Pie

I have had the HP12C app on my Samsung S8 for some time. It worked perfectly until the recent Android version 9 update. Now the keys don't work properly. Press 2 and you get 1. Everytime you press a button the previous button highlights. It is completely useless now. I updatethe HP12 C platinum app , same result.

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