CERTIFIED DEVICE DETAILS
Below are all of the certified versions of this device.
| Manufacturer: | Microsoft |
| Model Name/Number: | E73 (RM-658) |
| Technologies and Bands: | (3G) UMTS FDD: Band I Band IV Band VIII (2G) GSM: 850 MHz 900 MHz 1800 MHz 1900 MHz |
| Certification Date | Hardware Version | Software Version |
|---|---|---|
| 2011-04-12 | 1000, 9013, 9016, 9017, 9018, 9019, 9020 | 057.004 |
| 2011-03-07 | 9013, 9016, 9017, 1000, 9018, 9019, 9020 | 057.003 |
| 2010-10-13 | 9013, 9016,9017, 1000, 9018, 9019, 9020 | 044.008 |
| 2010-07-15 | 1000, 9013, 9016, 9017, 9018, 9019, 9020 | 043.001 |
| 2010-06-10 | 1000, 9013, 9016, 9017 | 042.007 |
| 2010-05-26 | 1000, 9013, 9016, 9017 | 041.013 |
The PTCRB certification program provides confidence that devices conform with global standards and perform optimally on mobile wireless networks.
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