One card will work.
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Both my Helix 10 Mega SI and Helix 12 Mega DI are on update v. 1.610. I want to download this version to card just to have it in library. Do I need to download v.1.610 to two individual cards , 1 for 10 and 1 for 12, or will 1 card work for both units?
Each unit will ignore a software version not specifically marked for that specific model ....so one could have multiple software versions for separate units on 1 card ...,
But why risk it - SD cards are cheap ...
Rickie
www.podunkideas.com <--Click here
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------------------------>> Pro Staff Sonar Advisorwannabe fisherman LIKED above postIceNitro thanked you for this post
What size card is needed for the updates? I've got to update my unit. HB said not larger than 32, but the lady I was talking to didn't say what the minimum size is.
www.podunkideas.com <--Click here
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https://www.crappie-gills-n-more.com/
https://cornfieldfishinggear.com/
------------------------>> Pro Staff Sonar Advisor