"LETS MAKE A GAME: INFINITE RUNNER" tutorial, why not jump when i am publish in android platform?

Unity Engine
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“LETS MAKE A GAME: INFINITE RUNNER” tutorial, why not jump when i am publish in android platform???

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Translation:

I’ve done the tutorial called “LETS MAKE A GAME: INFINITE RUNNER” from here: http://unity3d.com/learn/tutorials/modules/beginner/live-training-archive/infinite-runner and when I deploy to my Android device, I find that jump doesn’t seem to work.

Please assist me!

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You will have trouble if you’ve published to an Android device with a single core CPU/GPU like a lot of the cheap $50 Android tablet running Jelly Bean or older.