Apple pushes out iOS 10 update fix to T-Mobile subscribers8
Apple has quickly sent out a fix for T-Mobile subscribers, Carrier Update 25.2. Those who have already updated to iOS 10 should go to Settings > General > About. If you have yet to update to iOS 10, go to Settings > General > Software Update.
All of this drama took place just a day after iOS 10 was disseminated by Apple. The update happened to brick iPhone units belonging to several users. Apple originally told those receiving error messages that they should try to use iTunes to update their device, or call Apple support. Eventually, Apple resolved that problem.
source: @JohnLegere via TmoNews