DI2 Dura Ace doesn’t shift to gears 12 and 1

My rear derailleur DuraAce is not shifting gears to the 12 and 1 gear but work pretty smooth as expected on others. It makes a strange noise like as you can see in video. Any Thoughts?

Maybe read this

Your limits are too tight. The noise you hear is basically the derailleur having to shift back. This uses a lot of battery as well. Try one if the guides here.

To clarify, I would re setup the rear derailleur and will be good.


Problem fixed. Don’t know how but the derailleur limits were actually not well set.
Thank you all.

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