I have exactly the same problem, time is set, accurate within a couple of seconds. Bangle left on table in middle of a relatively large garden, with a clear view of the sky. GPS set to on using Bangle.GPSPower(1), Bangle.getGPSFix() ran every 5 minutes or so, after 1 hr all data is NaN, time undefined and 0 satellites. Not sure how to set location and/or AGPS data. Any help or ideas welcomed.
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