Turned on my sds100 and changed the zip code back to my home county since I took it on a trip and when I did, it loaded up a county next to me and stayed on that county and one channel but not scanning. Very weird. Turned it off and back on and loaded my zip and it worked normal. All services were on as usual. Tried selecting the county it was stuck on seeing if it would scan, but it unhighlighted the county and stayed on that one frequency. Maybe an sd card issue??