Edge 840 doesn't registers Shimano d-fly extra buttons presses every time.

razz 4 months ago

d-fly buttons (on top of ultegra/dura-ace shifters) sometimes work ok - they change screen (left/right) or start new lap (double press) etc.

BUT quite often, I have to press buttons many time, it looks like my Edge 840 "registers" only 1/5 of my presses !!!

also I don't see any connections drops (no messages about connecting again etc.)

My D-fly in next to a stem, just 2cm from Edge.

(I've tested my bike with Edge 530 and everything works correctly, during 2h ride I didn't have such problems with buttons even once !)

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0 Pedro L. 2 months ago

I have same issue. I wrote to customer support and they told me they know there is an issue. Contact them, because they’ll request some data to continue their investigation

0 razz 1 month ago in reply to Pedro L.

I've sent them data from my garmin (logs etc.) 2 months ago

0 embepi 1 month ago

Do you still observe the issues? I've just upgraded from 830 to 840 and I find it really annoying. It was working perfectly on 830

0 Pedro L. 1 month ago in reply to embepi

Yes, it's still happening. Yesterday I received a firmware update (version 20.19): https://forums.garmin.com/sports-fitness/cycling/f/edge-840-series/363507/edge-840-series-sw-20-19---phased-rollout-20

I do not have tested it, but will test it tomorrow

0 CooNa 1 month ago

I think I'm experiencing the same issue... The Di2 D-Fly isn't connecting well, and even when it does connect, it seems to disconnect immediately. I never had this issue when using the Edge 520!

0 embepi 1 month ago in reply to CooNa

Yeah, same for me - never experienced this on Edge 830.

I've just moved the EW-WU111 transmitter closer to the Edge (near the DI2 control panel, it was in the seatpost before) but no improvement.

I tried to change the connectivity to Bluetooth LE but then it's not detected by Edge at all.

0 embepi 1 month ago in reply to Pedro L.

Pedro, I have 20.19 and the problem still exists :/

0 Pedro L. 1 month ago in reply to embepi

it is frustrating to spend almost 500€ in a device that does not work fine. They know there is a bug (I contacted their customer support and they know there is a bug) and three months later we still do not have solution. I think they will not solve it and will give support only to new 12v Shimano group sets.

0 embepi 1 month ago in reply to Pedro L.

I couldn't say more. I've just paid this amount to switch from the 830 just because the battery didn't keep that long. Now I think I screwed and I should have just started taking a powerbank with me...

I'm hoping it will improve soon, though.

0 embepi 1 day ago

I have my Edge replaced by Garmin, but the problem persist. So, it's not an individual device problem but probably all the devices are affected.