This message is for +Samsung USA and +Sprint:

Below is a rather significant problem with your Galaxy S II Epic 4G Touch. When plugged in, the touchscreen doesn't reliably respond to input.

Looking online it looks like it has been a problem with other Samsung phones in the past. http://www.groovypost.com/forum/off-topic/samsung-galaxy-epic-4g-unresponsive-touch-screen-if-on-usb-t96308.html

+Android Police, do you know anything about this bug?
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