Samsung SM-T537AYKAATT - Manual (Page 161)

Settings 156
Software Update
The AT&T Software Update feature enables you to use your
phone to connect to the network and upload any new phone
software directly to your phone. The phone automatically
updates with the latest available software when you access
this option.
1. From the Settings screen, touch General ➔
About device ➔ Software update.
2. Touch Check for updates.
3. At the AT&T Software update prompt, touch OK to
continue.
4. The phone automatically updates the software (if
available), otherwise, when the Current software is up
to date prompt displays, touch OK.
When updating software, once the update file is downloaded,
you can delay the update on the start screen by postponing it
for a certain period of time. If you want to resume the update
before the selected time, touch Continue update.