that is a battery.your batery ran out.you can push reset then download and it will work for a couple of hours or atleast it worked for me.or just change the battery.
When you download it you won't loose any of your information or anything, but you'd have to set the clock to the correct time because the clock will be at the exact time, day and month it was at when your battery died. So there's a tip for you when your battery dies in the future, you'll know what to do right after.