Most Samsung mobile phones use Google's Android operating system, but a few models use Microsoft's Windows Phone operating system or Samsung's own Bada operating system. All three operating systems are designed to work w... More »

To unlock a Samsung mobile phone, get an unlock code from unlocking service providers, including your current mobile network. You can also buy unlock codes from sites, such as Ebay. Different Samsung models have differen... More »

Samsung's support website has links to download the user manuals for mobile phones. The site contains links to the company's most-popular phones, and users can search for manuals by model number or model name as well. More »

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