Download .zip package below via an alternative Internet connection.
Insert the impacted U300 device.
Proceed through the installation screens as prompted which will complete and then run "U300 WiMax Certificate Update Tool" automatically.
If your device does not need a certificate update, the tool will display "Your device was already updated".
If you do need a certificate update, you will see a button "Start Certificate Update" which you will need to click.
If your computer is not connected to the internet, this tool will use the U300 to connect to the internet briefly.
Once completed, the tool will display the message "update success".
Once the tool presents the “update success” message it will automatically uninstall from your computer.
Now launch Sprint SmartView 2.27 software, insert your device and you will be able to connect to 4G if you are in a 4G area and have a 4G capable service plan, otherwise your device will connect to 3G.
Software Version: 018
OS Supported: Windows Vista, Windows XP