The 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. Note: If appears in the Status Bar area, tap it to be taken to the Software updated screen. This feature can be accessed either through traditional wireless technology or can be used by connecting to Kies Air and synchronizing with an already downloaded update.

1. Navigate from the Home screen to 'Settings > Software update'.
2. Read the Software update information screen and agree to the terms and conditions.
3. Select an available option: Note: You configure the device’s software update parameters.

OK: Tap this option to connect to the remote server, detect if there is an available update, the begin the download over your existing data connection. Software updates can include bug fixes, enhancements to services, to the device or currently installed software.
Wi-Fi settings: Enable this option to only download available updates via an active Wi-Fi connection. If disabled, the device will begin available downloads via its’ T-Mobile connection.
Cancel: Tap this option to cancel the operation.

See More: Update Your Samsung Galaxy S Blaze 4G's Software