I have a few of the last software updates stored on computer for the helix 9 SI g2n and 10 DI g2n to revert back to if this newest update were to give you fits, but from what I read on BBC and Roy’s posting, we been waiting on a decient update and this seems to be it. I never get rid of a update once I have downloaded it and keep backup copies of my updates. Just a FYI if needed. Just be sure to follow instructions to do update as per Humminbird.