Follow 5 easy steps to update the firmware on your SOREL data logger: 1. Take SD card from data logger to PC 2. Copy firmware.bin to root directory (!) on SD card 3. Disconnect data logger from power supply 4. Plug in SD card and switch on power supply again 5. Quickly press reset button for 3 seconds Red LED blinks during installation and turns green when finished Important notice: Don’t carry out firmware updates without consultation with us to ensure compatibility of software and hardware!