I have noticed the occasional "flicker" on my one s, particularly in the messaging app while typing. The screen almost flashes, but its very quick. I have yet to manually reproduce this, and I am not sure if its a software or hardware issue? I have looked at the dev settings and I don't have anything set to warn of cpu usage or anything. I have been using swift key 3 as my keyboard but I don't see how that would effect it. Any advice would be appreciated.
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