If you have any questions on Galaxy S4, or if you want to leave your feedback, please use the form below. We will try to get back to you as early as we can.
You may check the Galaxy S4 online manual page, Galaxy S4 features explained page, or the Galaxy S4 User Guide (PDF format, more than 20 different languages) page to find more info on Galaxy S4.
You are also welcomed to start a thread in the Galaxy S4 discussion forum to discuss anything about Samsung Galaxy S4.
For Galaxy S5 questions, please check this site.
For Galaxy S6 questions, please check this site.
For Galaxy S7 questions, please check this site.
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