Symptom: Counter counting down on display and it only goes to the yellow GPS light, not the green DGPS light.
Cause: Correction type set to E-Diff.
1. Change the correction type to SBAS.
2. Press the Menu button
3. Use the down arrow to scroll to "Service Menu"
4. Press Enter on "Correction Type"
5. Use the down arrow to move the courser to SBAS, and press Enter. Reboot the unit.