DI2 completely dead

Triathlon Forum
1

I just bought a new bike online. I figured there would be a few headaches without the support of a bike shop but the deal I got makes it worth it.

I hooked up the cables and battery for the di2 using the tool and everything worked perfect including blue tooth through the WU-111 adapter. I connected to the e-tube app and started the software update. Halfway through it lost connection and now is completely dead. No lights on the junction box no matter what I do. I double checked all the connections I made.

My best guess is one of the connections to the B junction box inside the frame is loose. Can I access this box by removing the crank? (I have to buy the tool) Or how do I access it? Any other thoughts on what else it could be?

It’s a giant Propel Advanced SL 1 (With the integrated seat post). Ultegra di2 2017 version, but it does have the updated battery.

2

Give me a call if you would like me to help . I sent you a PM.

3

Remove the crankset and bottom bracket.

4

what was the battery level when you started the update.
if if is low that can cause problem if you start updates.

5

The battery reference is not a bad idea. You can get it out and use it with a Junction A to fully charge it. I had a series of frustrating issues that turned out to be a faulty battery. This was the new BT internal. I never had an issue with the previous versions.

I’ve had some firmware updates go wrong that took using the PCE-1 to get an individual component re-updated.

Only mentioning for some things to try before pulling out BB to check Junction B.

6

SummitAK - you are probably correct - this is a current and frequent issue for some reason. Never had the issue in the past but the last bulk shipment of batteries has something going on. We finally figured it out - but a lot of frustration. Shimano support will insist that you have a loose connection somewhere.

  1. unplug everything at the charge junction A accept the battery so the charger will turn on. If it does not yellow light immediately unplug and plug back in.

  2. fully charge it.

  3. Re-attach all the wires into the junction A (doesn’t matter which port plug). Try it again. If it does not work leave everything the same way but just unplug the battery from the wire - wait a minute - plug back in and it should work.

7

Thanks all. I tried plugging the battery into the junction A box and let it charge fully, until the orange light went out. Hooked it back up and still nothing, even after unplugging for a few minutes and plugging it back in. I don’t even get anything lighting up on the junction A box.

So my next step is?

  1. Buy/ borrow a battery and see if that fixes the issue.

  2. Buy the SM-PCE1and use it to diagnose the system.

8

Next I would plug your charger into the bike system and your computer after you have downloaded “www.etubeproject.shimano.com” when you open the Shimano application use Road Bike - let it walk you through the steps and see if all the components are recognized.

The program is free.

9

Thanks all. I tried plugging the battery into the junction A box and let it charge fully, until the orange light went out. Hooked it back up and still nothing, even after unplugging for a few minutes and plugging it back in. I don’t even get anything lighting up on the junction A box.

So my next step is?

  1. Buy/ borrow a battery and see if that fixes the issue.

  2. Buy the SM-PCE1and use it to diagnose the system.

In your original post it sounded like you used the BCR2 charger connected by USB to a computer for the firmware update using e-tube project. Did you try connecting it to e-tube project again while everything was disconnected except for the battery and Junction A?

I probably should have asked this before for clarity. One oddity of the EW-WU111 is that it can only be updated using the BT app while the rest of the system can use the wired e-tube project. This can result in a strange update sequence where you may need to switch back and forth.

10

Next I would plug your charger into the bike system and your computer after you have downloaded “http://www.etubeproject.shimano.com” when you open the Shimano application use Road Bike - let it walk you through the steps and see if all the components are recognized.

The program is free.
Thanks all. I tried plugging the battery into the junction A box and let it charge fully, until the orange light went out. Hooked it back up and still nothing, even after unplugging for a few minutes and plugging it back in. I don’t even get anything lighting up on the junction A box.

So my next step is?

  1. Buy/ borrow a battery and see if that fixes the issue.

  2. Buy the SM-PCE1and use it to diagnose the system.

In your original post it sounded like you used the BCR2 charger connected by USB to a computer for the firmware update using e-tube project. Did you try connecting it to e-tube project again while everything was disconnected except for the battery and Junction A?

I probably should have asked this before for clarity. One oddity of the EW-WU111 is that it can only be updated using the BT app while the rest of the system can use the wired e-tube project. This can result in a strange update sequence where you may need to switch back and forth.
The first time I tried to update through the phone app, when connected the WU-111 and it prompted me to update. I just used the PC app through the charger to check/update the firmware and everything seems to be working!! Thanks for all the help, hopefully I don’t have any further problems.