If you can't transfer pictures, music or videos between your device and PC, view this info on resolving conflicts.
Start Device Manager.
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Windows 10
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Right-click Start > Device Manager.
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Windows 8
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Right-click Start > All Apps > Control Panel > System and Security > Device Manager.
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Windows 7
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Click Start > Control Panel > System and Security > Device Manager.
For detailed instructions and older operating systems, refer to Opening Windows Device Manager.
The following devices are normally installed:
Depending upon the selected USB connection (e.g. Media device, Camera, USB debugging), some of the devices may not appear.
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Android Device
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Samsung ADB Interface
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Portable Devices
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G:\ (drive letter may vary)
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SAMSUNG-SM-J727V
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Sound, video and game controllers
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SAMSUNG-Android
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Universal Serial Bus controllers
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USB Composite Device
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USB Mass Storage Device
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Network adapters
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Remote NDIS based Internet Sharing Device
If a red X, yellow ! or yellow ? is displayed to the left of a listed device, a conflict is present and the drivers must be updated or reinstalled.
Driver conflicts may also be indicated by a device entry labeled Other Devices or Unknown.
If a conflict is present:
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Right-click the device then click Update Driver Software.
If using Windows XP, right-click the device then click Update Driver.
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Click Browse my computer for driver software.
If using Windows XP, select Install from a list or specific location (Advanced) then click Next.
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Enter C:\Windows\System 32\Drivers in the search field then click Next.
If using Windows XP, ensure Search for the best driver in these locations and Include this location in the search are selected.
The driver location can be entered manually or navigated to by clicking Browse.
If the driver software is not found, a Windows Operating System update may be needed.
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Click Close.
If using Windows XP, click Finish.