CERTIFIED DEVICE DETAILS
Below are all of the certified versions of this device.
| Manufacturer: | Microsoft |
| Model Name/Number: | RM-276/6555c |
| Technologies and Bands: | (3G) UMTS FDD: Band II Band V (2G) GSM: 850 MHz 900 MHz 1800 MHz 1900 MHz |
| Certification Date | Hardware Version | Software Version |
|---|---|---|
| 2008-11-25 | 5050, 5051, 5052, 5053, 5054, 5055, 5056 | 3.46 |
| 2008-08-12 | 5050, 5051, 5052, 5053, 5054, 5055, 5056 | 3.44 |
| 2008-01-28 | 5050, 5051, 5052, 5053, 5054, 5055, 5056 | 3.41 (SV 09) |
| 2007-12-21 | 5050, 5051, 5052, 5053, 5054, 5055, 5056 | 3.40 (SV 08) |
| 2007-11-21 | 5050, 5051, 5052, 5053, 5054, 5055, 5056 | 3.38 (SV 06) |
| 2007-11-12 | 5050 | 3.38 [IMEI SV 06] |
| 2007-10-09 | 5050 | 3.31 [IMEI SV 03] |
The PTCRB certification program provides confidence that devices conform with global standards and perform optimally on mobile wireless networks.
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