1.copy *.bin to the root of SD 2.insert SD to the Device 3.Move switch to the TEST position 4. LED start flashing on front panel 5. Once LCD show EVOLVEO logo you can remove SD card 6. Delete *.BIN file from SD The update fixes M26 04/30/2021-2.4: - Sending images to e-mail in the highest possible quality (the original settings sent photos in the lowest quality) - Temperatures below 0 ° C will be displayed correctly (Previously device showed 37 ° C) - Battery capacity corrected displayed value