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Manufacturer: Microsoft
Model Name/Number: 820.1 (RM-825)
Technologies and Bands:
(4G)
E-UTRA FDD: Band 1   Band 3   Band 7   Band 8   Band 20  
(3G)
UMTS FDD: Band I   Band II   Band V   Band VIII  
(2G)
GSM: 850 MHz   900 MHz   1800 MHz   1900 MHz  
Certification DateHardware VersionSoftware Version
2012-10-232411, 2430, 2431, 2432, 24331232.2109.1242.1000
2012-10-222411, 2430, 24311232.2101.1239.3000

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