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Before Start: Check the OS / Firmware version first. Update your device if it is not latest version.

Check Latest Version: Check if the available version is displayed in System > System updates > FOTA tab.

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Select a problem type you have

A device feature does not work
Device operates abnormally
Device cannot connect wireless communication (network, BT, etc.)
Device have a power-related problem

Select the feature that does not work properly

A device feature does not work
Device operates abnormally
Device cannot connect wireless communication (network, BT, etc.)
Device have a power-related problem