FS1-SE Drag and Drop Software Upgrade
Power on the meter and before the boot completes press "9, 9, 0" on the keypad. The percent bar graph will increase from the bottom to the top two times, the meter will come on and be in the reset state.
Enter "LONG" and "LAT" before using your meter.
Check your software version:
Starting with your meter off, power the meter on and before it finishes booting press the "Option" button. The software version will read out as a four digit number.