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Manufacturer: Microsoft
Model Name/Number: RM-455 / 6350-1b
Technologies and Bands:
(3G)
UMTS FDD: Band I   Band II   Band V  
(2G)
GSM: 850 MHz   900 MHz   1800 MHz   1900 MHz  
Certification DateHardware VersionSoftware Version
2011-01-120310, 0410, 0500, 1000, 1001, 1002, 1003bl13.17
2010-10-250310, 0410, 0500, 1000, 1001, 1002, 1003bl13.15
2010-09-150310, 0410, 0500, 100013.14
2010-04-060310, 0410, 0500, 1000bl12.40
2010-02-030310, 0410, 0500, 1000bl12.37
2010-01-110310, 0410, 0500, 1000bl12.35
2009-10-120310, 0410, 0500, 10004.96
2009-09-2905004.93
2009-08-200310, 0410, 0422, 0500, 10004.91

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