Product Info


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This SAMSUNG brand product, as supplied and distributed by SAMSUNG and delivered new, in the original carton to the original consumer purchaser, is warranted by SAMSUNG against manufacturing defects in materials and workmanship for a limited warranty period of:

All Warranty Info

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Manuals & Downloads


  • User Manual ver.F3 (EN, 2.66 MB) ?
    • US Cellular SCH-R640 (Character) User Manual - English
    Jul 7, 2011
    Download (pdf)
  • User Manual ver.F4 (EN, 4.67 MB) ?
    • Generic CDMA
    Jul 11, 2011
    Download (pdf)
  • User Manual ver.F4 (ES, 2.87 MB) ?
    • Generic CDMA
    Aug 4, 2011
    Download (pdf)
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  • Device(Install),USB Driver (Software) ver.v1_3_2300_0 - Win XP/Vista/Windows 7 (EN, 22.81 MB) ?
    • Title USB Driver for U.S. Cellular SCH-R640 (Samsung Character)
    • Applicable Model SCH-R640
    • Carrier or Corporate Customer US Cellular
    • Description USB Driver for U.S. Cellular SCH-R640
    Jan 30, 2012
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