Updating Optus 4G Modem (ACS-800)
The Optus device will periodically require an upgrade to install. Sometimes this will block internet connection for the PC until the update is applied.
Before starting the update, please ensure that the device is plugged into the PC, and that it has 50% or more battery charge (top right corner of the screen).
Step 1: You will know that an update is available when you see a yellow alert bar near the top of the Optus device's screen. Tap on the bar (the device has a touch screen, just like a phone) to open the alert.
Step 2: Tap on the Start Download button to begin the update process.
It may take several seconds for the device to react after you tap Start Download. If after 10 seconds nothing has happened, tap the button again.
Step 3: The yellow alert window will close and the update will download in the background. Tap on the yellow alert bar to view the download progress.
Step 4: Once the download is 100% complete, the message will change, asking you to start the update. Tap on Start Update to begin the process. The yellow window will close, and after a few seconds the device will restart (you’ll see a battery icon) before the Installing update... screen appears.
The update installation will take several minutes. The screen may flicker and the device may restart a few times. The green bar may even move backwards at one point. Just keep waiting.
As the Installing update... screen warns, do not turn off the device at this time, regardless of how long it takes. Doing so may permanently damage the modem.
Step 5: Eventually the Optus logo screen will appear for about a minute, and then return to the normal Home screen. At this point still keep waiting.
Step 6: After a few more seconds, a screen notifying of the successful completion of the update will appear.
Tap on the X in the top-right corner, and it will return to the Home screen again, and the update is now complete. You should have Internet connection again from your PC at this point.