I am Brazilian and I am also with the same error on my L830. I saw in some places that if you change the language to English, it works, but it didn't work here. If you find any correction, tell us, please.
My Fix: Download Lumina Software Recovery tool. Open the app in your pc, plug in your phone, the Recovery Tool with detect if there's any update available for your phone. The update from my PC worked fine without any 8018830f errors. The latest update for Windows 8.1 has improved a lot.