Well, it's most likely a malfunction then my friend. A customer came into my store just the other day with his S5 he just purchased three days prior. The device was stuck on that S-View screen even when the S-View case was not covering the screen and even completely detached. We tried everything you can at a T-Mobile store. Even factory reset. Still, the problem persisted. It happens friend, hope you have insurance or JUMP
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Really appreciate your time and help!