I just did a factory reset on my Garmin 520 and now it freezes on the About screen. It won't turn off the normal way with just the power button, but I can get it to reset by holding combinations of buttons for 10 seconds. But it always hangs on the screen below. I have also tried plugging it into my Windows machine to see if Garmin Express can recognize it, but it doesn't. I suspect the Factory Reset has put it in a mode of incompatibility with the latest Bios?
Very frustrating. I did the factory reset as I bought the 530 and just sold this 520 on eBay. If anybody out there from Garmin or the real world has any idea how to fix this problem I would sure appreciate it!!