Reply To: Mychron 4 gps help!

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April 15, 2017 at 7:26 pm #80594
Jim Campeau
Participant

On a computer go to the Aim website and download the latest firmware, load it on to the data key, now put data key into Mychron 4 and it should update your firmware.

http://www.aim-sportline.com/eng/download/firmware.htm