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Di2 charging but shifters arenít working after shipping

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Di2 charging but shifters arenít working after shipping

Old 01-06-23, 08:54 AM
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lilbiff3
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Di2 charging but shifters arenít working after shipping

Good afternoon,
Can anyone give me some advice, please.
Iíve shipped my bike abroad and the di2 is charging, but no power going to the shifters. All internal, any ideas on where to look/ what to do? All bike shops closed unfortunately- thanks in advance
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Old 01-06-23, 09:02 AM
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Peel back the bar tape and check the connections at the shifters. Best to have the Shimano install tool to snap the connections in place if they came out. A good installer will leave a 180 deg. loop of excess cable at the shifter end. If nobody did this easy to pull out a cable.
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Old 01-06-23, 09:06 AM
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Old 01-06-23, 09:24 AM
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11 or 12 speed bike ?
Rim or disc brakes ?
Barry
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Old 01-06-23, 09:25 AM
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Originally Posted by Barry2 View Post
11 or 12 speed bike ?

Barry
11 speed
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Old 01-06-23, 09:32 AM
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rim/disc only matters for 12 speed. So we won’t care about that.

If you hold the left shift lever for 2 seconds, does the light on the junction box flash?
what about the right shifter .

Barry
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Old 01-06-23, 09:42 AM
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Originally Posted by Barry2 View Post
rim/disc only matters for 12 speed. So we wonít care about that.

If you hold the left shift lever for 2 seconds, does the light on the junction box flash?
what about the right shifter .

Barry
No lights on left or the right side
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Old 01-06-23, 09:50 AM
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check both buttons on on both left and right shifters.

We are looking to see if both front (FD) and rear (RD) derailleurs are not working.

Barry
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Old 01-06-23, 09:52 AM
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Originally Posted by lilbiff3 View Post
No lights on left or the right side
Please confirm you did look for the charging light on the junction box, and NOT a light on the left and right shifters, because that's a 12 speed only light!
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Old 01-06-23, 09:56 AM
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(I have 6870 Di2)
How do you know it's charging? You should see the green light on the charger power block -- this lights up when the charger is connected to the junction box, turns off when it's charged completely.

Did you disconnect the seat tube battery and remove the saddle when you shipped the bike? I spent a very long time troubleshooting before I found that the Di2 cable wasn't connected all the way -- there's a slight click as the wire is inserted, but it needs the second stronger click to actually make the connection.
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Old 01-06-23, 10:03 AM
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Old 01-06-23, 10:14 AM
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Originally Posted by Barry2 View Post
Please confirm you did look for the charging light on the junction box, and NOT a light on the left and right shifters, because that's a 12 speed only light!
Thanks for the heads up regarding the posting Barry. If i hold the green light at the junction box, it shows fully charged. Neither front or rear derauliiers working, and checked battery in seat post etc, all seems fine.
I think (but as you can see no expert) itís something to do with the shifters.
Huge thanks for all the advice- amazing forum 👌🏼
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Old 01-06-23, 10:29 AM
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You likely have three connections to the junction box.
These are easy to see if the box is mounted under the stem.
1. Left shifter
2. Right shifter
3. Battery

If you are able to charge the system, Junction light comes on during charging, then junction light goes out when fully charged. Generally (version R8000 series) the junction to battery connection appears to be good.
Unsure if this is the same in older versions (some have smarts in the battery mount).

Losing both shifter functions is a bit weird.
Example, on my R8000 I can fully unplug the RD and the FD still moves when asked.

Didn't think to ask..... if the bike has the D-Fly bluetooth add-on, You could try connecting to the App and see what Di2 components show up.


If the bars were removed for shipping, I'd be checking the Di2 cables connecting the shifters to the junction box, starting with the junction end, because it's easier to see.

Please do report back on the final solution.

All the best

Barry
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Old 01-06-23, 11:58 AM
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Component failure is very rare IMO. It is very likely just a bad connection somewhere.

The wires have a double bump that you should feel when you push them onto the individual components. The Shimano tool helps greatly. There are two different tools depending on whether you have the old or newer Di2 wires.

Check this site out for some pointers and also for links to the Di2 manuals at Shimano that might help you.

www.bettershifting.com

Checking the connections at the shifters underneath the hoods and then following the wire back to their other point of connection and checking that too would be the first places I'd check, but won't necessarily be the culprit depending on what may or may not be being seen if you use eTube to show you what it sees.

Last edited by Iride01; 01-06-23 at 12:11 PM.
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Old 01-06-23, 03:25 PM
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I have had problems alluded to by Irideo01, when the cable end is inserted into the socket there is frequently a palpable
'double bump' that is not always felt IME but when it is unless that second clik is felt the connection will not be made.
A bike shipped, especially with bars turned at an extreme angle, is at risk for disconnex at the brifters especially but
possibly at the junction box as well. The cable connex are by far the most likely explanation for your problem.
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Old 01-08-23, 02:26 PM
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Since the battery charger shows a charging LED, that means that the connection between the junction box and the battery is OK.

I'd look for a problem between the junction box and the shifters. Since none of the shifters are working... is there a Y-splitter installed on this bike? Does it have the bar-end junction box?
Since it's a 6870 bike, it probably has the below-the-stem SM-EW90 Junction box, and no Y-splitter... so I'd double check the connections at the Junction and the shift levers. Pull back the hoods like the others have said, and inspect the connectors. Note that the bottom ports are for sure with the SW-R610 satellite shifter only (assuming these are the 6870 shifters).

Since you have the charger with you - do you also have a windows computer/laptop? If so, connect the charger to the bike and download/install and run E-Tube Project 3.4.5 or 4.0.4 (https://bike.shimano.com/en-EU/e-tub...t/archive.html).
If ETP 4.0.4 complains that your charger needs to be updated, run 3.4.5 instead. Doing so will automatically update the charger.

If you're running ETP 4.0.4, open the 'update' tab after connecting to the bike. That shows all connected components and this should tell you where the problem is.
If ETP 3.4.5, then run the 'connection check' and it'll show you a list of components right after connecting.

Don't know how to interpret the things you see? Post a screenshot
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