T-Mobile Is Not Updating The Lumia 710 To Windows Phone 7.8
If you purchased a Nokia Lumia 710, you may have noticed that it comes with Windows Phone 7.5. Microsoft attempted to improve the phone by sending out an update to the phone for version Windows Phone 7.8. Unfortunately if you have the phone through T-Mobile, you will not be able to get your hands on version 7.8 or version 8.0.
A reader at WPCentral e-mailed Nokia to find out if they would get the Windows Phone 7.8 and they received an e-mail back saying that there are only a small number of carriers that have chosen not to roll out the update. T-Mobile did not give a reason for why they have opted out of providing the update.