I had the GPS Shield working great (after figuring out how to get a GPS lock the first time).
I have the coin cell installed, so locked fast after power downs.
Then, today I made some minor changes to my code, mostly the timeout (frequency of updates) to the cloud, uploaded/flashed the Electron.
Now, the LED light for the “fix” position on the GPS shield goes out quickly (as it did before), yet the Electron never updates (i.e. t.gpsFix() returns 0, even though the LED light has stopped blinking!). (checked via Serial)
I have tried to remove the coin battery, complete power cycle and re-flash.
Could the GPS Library have changed since I last compiled? How do I check that?
appears there are others that have seen this issue and reported on github
Could the use of an external antenna cause the GPS to fail? how can I debug the GPS?