I updated my Edge 520 to FW 13.10 and now it can't find any satellites. I downgraded to FW 12.90 and still no joy. It just tries forever and never acquires. I've waited for over 45 minutes, and nothing. It never gets past 2 flashing bars (once it got up to four, but then dropped back to two). This has been working fine up until the upgrade. Any clues? I've also tried factory reset.