Please help! My 520 cannot locate satellites

I'm having the same issue

I'm having exactly the same problem. It worked for a couple of rides and then stopped. I've tried resetting the device. I've tried sitting in one place, out in the open, with the Edge 520 switched on, for several minutes while it tries to find satellites. No matter what I do, after a couple of minutes it pops the message, "Trouble finding satellites. Continue searching?" I say yes, and then it just goes back to searching. I've tried waiting as long as ten minutes, but no success.

The user manual also says you can improve GPS by bluetooth pairing to a phone with GPS. It seems to suggest that the phone will send GPS info to the Edge over bluetooth. This doesn't seem to work either.

Meanwhile, my phone itself can find satellites and GPS just fine.

How many other people are having problems with the Edge 520 finding satellites or locking GPS? I wonder if there's an issue with the 520 since it's so new?

Have you made any significant change in you location between rides (e.g. several hundred miles).

To speed up getting a satellite lock the Edge caches information about the satellites it last used, an almanac. If you make a big change in location then this cached information can actually make the first satellite lock in the new location slower as it tries to find the old satellites first before giving up on that and building in a new cache.

There is a way you view what the satellite search is doing, which might give you some idea of what is happening.

Briefly press the power button with the Edge on so that the Edge brings up the brightness page

Go to the “Set Brightness” page, and hold down on the lap key for around 5 seconds. This will bring up a new page containing

Diagnostics
View Satellites
GPS Simulator

Select "View Satellites" it will show what satellite numbers it currently searching for and their relative signal strength. Make sure to do this in the open with a go clear view of the sky and see what happens.

3603

If the Edge isn't finding the satellites either some data is corrupt or the receiver is bad. I would try reformatting the Edge and having it rebuild the system. If that doesn't fix it contact support.

yup

I had similar issues from day one with mine. It would get a position fix but if a butterfly flew within 100 yards, it'd lose it. In fact, one 10 mile ride in open farm land it only logged 3 or 4 positions the entire ride. Whereas my 920xt on my wrist, facing the ground, was 100% solid as usual. I tried everything one could possibly try with the 520, finally sent it back for replacement. The first one took 5 minutes to get a position when left outside on a table with nothing around, it's replacement takes about 5 seconds to get a <10' lock indoors. :)