Humminbird has released an up date that installs the ice fishing mode in the bigger than 7 inch units. Which is great for the people that only own one unit.
https://www.humminbird.com/support/software-updates/HELIX-10-CHIRP-MEGA-SI-GPS-G2N-v-2-110This link is for the Helix 10 G2 SI imagers only. IF you own a different model . Just go to Humminbirds home site click on support click on software
update. Then find your particular model. My version installed without mishap. Make sure to follow instructions.
