CERTIFIED DEVICE DETAILS
Below are all of the certified versions of this device.
| Manufacturer: | Microsoft |
| Model Name/Number: | 2220s-b (RM-591) |
| Technologies and Bands: | (2G) GSM: 850 MHz 1900 MHz |
| Certification Date | Hardware Version | Software Version |
|---|---|---|
| 2010-02-09 | 0302, 0402, 1500, 2500, 9501 | 09.75 |
| 2009-12-18 | 0302 | 09.55 |
The PTCRB certification program provides confidence that devices conform with global standards and perform optimally on mobile wireless networks.
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