This feature is available only for devices that support the ability to download the firmware in advance.
How can I Change the Firmware Upgrade Settings in Kies 3?
You can adjust how Kies 3 handles available device firmware updates for connected Samsung devices. Click Tools > Firmware upgrade settings and mark the checkbox next to Latest firmware auto-download. Select your device in the list and click OK. When new firmware is available, it will be downloaded and ready for installation the next time you connect the device.
Note: For support using Kies 2.6, please click here.
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