In some cases, the Forerunner 405, 405CX, or 410 may not lock onto satellites. This can be due to corrupted satellite information. Performing an AutoLocate will clear previous GPS data and allow the device to lock onto its current position.
You may also need to perform an AutoLocate in the following circumstances:
To perform an AutoLocate on the Forerunner:
Once the bars on the Satellite page have disappeared, the AutoLocate is completed. The bars will reappear as the Forerunner locks onto its location.
If acquisition issue persists, it may be necessary to perform a reset.