Thanks to our member Vidi who informed us. It was released yesterday so it's rather old news but a carrier known as BASE, has released an official OS for the 8520 Device. 126.96.36.1996 is now the latest known official OS for this device. I have installed this OS onto my 8520 but I really don't see any difference between this one and .286. Either way, if you wish to download 188.8.131.526 you can do so by clicking here.