After I programmed my Primer 2 with the example "toggle" which toggles the LEDs, the LCD was blank and could never power down. I took the back off of the Primer 2 and removed and replaced the battery jumper to do a hardware restart. However that didn't bring back the LCD.
So in order to fix this problem I had to run Restore_Primer2_Circle_Factory file.
Do I have to do this every time I program something into the Primer 2 in order to see the Circle OS again???????
