Check the software version
To check the current software version, follow these steps:
From the Home screen, tap the Apps icon.
Scroll down to 'System,' and then tap About device.
Read the baseband version on the phone, and check it below:
Your software is up to date. There are no updates available.
This document will be updated if and when new software is available.
Your phone can update to software version T817TUVU2BPF1:
Review the Requirements to update
Starting July 18, you may download the update below.
If the update fails, contact customer care.
Your phone has non-T-Mobile software, and it is unsupported. The manufacturer and T-Mobile cannot update your software.
Requirements to update
To be able to update to the current software version, the below requirements must be met:
50% or higher battery life
File size of update: 1022 MB