The Android 5.1.1 update seems pretty much more loaded with device protection features, along with the Anti Theft added on it there are also some changes found in device security settings. The developer options is now added with option for OEM unlocking, to unlock the "bootloader" particularly. But the T-Mobile Galaxy S6 hasn't been locked up, so this feature might be just an extra toggle that could be used by advanced users for customizing the device.
Here are the technical details:
Device name: Galaxy S6
Model number: SM-G920T
Android version: 5.1.1
Baseband version: G920TUVU2COF6
Kernel Version: 3.10.61-5028597
Build Number: LMY47X.G920TUVU2COF6
New features of G920TUVU2COF6 / Android 5.1.1 Update
- Anti-theft- Android Factory Reset Protection (FRP)
Improvements
- Black boxes in email is resolved
- Camera LED flashlight is resolved
- Check for Amazon error is resolved
- Failed to reboot – error message is resolved
- Fingerprint scanner improvements
- Various bug fixes and device improvements
The G920TUVU2COF6 Android 5.1.1 update files size is 630.96 MB which held available over-the-air (OTA) or through Smart Switch app. Just ensure that your T-Mobile Galaxy S6 device hasn't been modified or else you will the consequences of failing to get the OTA. Just head-over to T-Mobile support page for further details.