6870 Di2 Front Derailleur weirdness

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  • Above derailleur is not playing nice. Very slow to electronic trim when shifting from big ring to small at front and motor doesn't sound as crisp as it should when down shifting.

    New firmware also allows for micro adjusting the front derailleur by using the levers and does not require etube. However when the bike is connected to etube and I try to micro adjust the front (with chain in big ring and big sprocket as it should be) I simply get a programming error message and the derailleur will not move along any of the 12 increments.

    All connections are good and system works fine with another derailleur I have tried. Is the dodgey one dead or is there a fix?

  • Is it possible that there was an error in the firmware update?
    You can reapply an old version. Check it’s ok then try to re-apply the new version. The instructions are here near the top.
    http://carltonbale.com/shimano-di2-everything-you-need-to-know/#compatibility
    I’ve never done this. I run a mixed version of 6770 levers and front mech with a 6870 rear and an internal battery so never let my pc near the setup in case it stops working.

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6870 Di2 Front Derailleur weirdness

Posted by Avatar for scultura @scultura

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