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Manufacturer: Microsoft
Model Name/Number: 111.1 (RM-811)
Technologies and Bands:
(2G)
GSM: 850 MHz   1900 MHz  
Certification DateHardware VersionSoftware Version
2012-10-040202, 0302, 1400, 2400, 440003.31
2012-08-130202, 0302,1400,2400,440003.29
2012-07-030202, 0302,1400,2400,440003.24
2012-06-01020203.07

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