CERTIFIED DEVICE DETAILS
Below are all of the certified versions of this device.
| Manufacturer: | Microsoft |
| Model Name/Number: | 5800d-1b (RM-428) |
| 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 |
|---|---|---|
| 2010-07-27 | 0801, 1101, 1104 | 51.2.007 |
| 2010-07-15 | 0801, 1101, 1104 | 51.2.005 |
| 2010-05-14 | 0801, 1101, 1104 | 50.2.005 |
| 2010-03-08 | 0801, 1101, 1104 | 40.2.005 |
| 2009-12-16 | 0801, 1101 | 31.2.101 |
| 2009-02-05 | 0801, 1101 | 20.2.014 |
| 2009-01-20 | 0801, 1101 | 11.2.008 |
The PTCRB certification program provides confidence that devices conform with global standards and perform optimally on mobile wireless networks.
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