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Tap Settings at the bottom and select About.

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Select Contact Us.

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You can send an email if you have any queries or suggestions while using nPlayer.
It will be much appreciated if you could send information such as App version, your device and OS version as they will helps us a lot figure out the problems or issues.

How to set up your email account

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If you have not set up your email account, please do it in Settings app.
Select Mail, Contacts, Calendars.

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Select Add Account and register a new email account.