It's not available for your's device due to Vietnam Govt. Policy. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
We would like to inform you that the products manufactured in different countries may vary in specifications, designs, features, and updates. So, we recommend you get connected with the Samsung customer support team of the respective country from where you have purchased the product.
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