Features
SHIMANO Di2 Inline Wireless Unit features is:
- Di2 Wireless Transmitter
Reviews
Below are some critical reviews about SHIMANO Di2 Inline Wireless UnitI am giving this just 2 stars based on the initial setup. Here is how it went.My DI2 had a removable connector near the handlebars which I simply removed and replaced with this unit. No problem there! Next I followed the instructions and put the DI2 in pairing mode by holding in the reset button. Lights flash red / green....great! Next, launch app on my iPhone follow prompts, set a new PIN and app pairs with the unit......woohoo!!! Then app tells me the firmware needs to be updated. The firmware update starts and things are progressing nicely until the app crashes...Uh oh... Try to reconnect app, Nothing. Try to put Di2 back into pairing mode....nothing. Lights dead, shifting doesn't work, NOTHING WORKS!!!!Now begins a long, long process to try and fix it. I will skip all the crap I went through but it took several hours before I finally got it to work again. Here is the process1. Update firmware through the app on your phone or other device.2. Somewhere along the way the firmware update kills the bluetooth and you will lose connection and the update fails3. Remove the WU111 and your DI2 should start to work again. Once functionality is restored put the broken WU111 back in place.3. Here is the key step, "YOU MUST NOW USE A DIFFERENT DEVICE TO CONNECT TO AND UPDATE THE UNIT". A PC can't be use for this purpose because the WU111 must be updated via BlueTooth ( makes total sense if you think about it. Like really it does, No seriously really it does.......). No matter what you do the original device will see but not properly pair with the unit. You must switch to a completely different phone or tablet and repeat the entire setup there.4. Once the second device is connected it will warn you the the current firmware may not function properly and should be updated.5. The second firmware update attempt seems to complete without problem and from there everything is golden.I think the problem has something to do with either the app or the device looking for the default PIN of 000000 while the other is looking for the custom PIN you put in during setup. Removing and reinstalling the app on my phone did not fix the problem. Using my wife's phone and starting from scratch allowed me to re-enter the custom PIN at which point it all went well.After the update was complete I was able to go back to the original phone and connect from there as well. There is another recent reviewer that had the same problem with a similar solution. This may be a temporary problem with this particular firmware patch. But having spent a lot of time working with technology nothing makes you more queasy than a firmware update that fails half-way through. There is no guarantee of recovery in most cases.Functionally the device seems to be working OK now. I programmed the buttons on my shifters to control my Garmin which is cool and I am able to see my DI2 battery level reported along with my other data which is why I wanted the unit to begin with.Hopefully if you buy one of these and run into the same problem the above steps will save you a bunch of grief.
This must be one of the worst purchases I’ve done.Shimano makes nice hardware but they suck at software; both on iOS and Windows. It’s obviously gone through no UX design and seems to have been cobbled together by someone who has never tried to make user friendly software.The E-TUBE app tries to automatically update the firmware of your Di2 components on 1st connect. Unfortunately this seems fail and brick your system for many people, including me. The only recovery method is to use their Windows only software and USB-A connection (no Mac software, and it doesn’t work virtualised either). And if you can use that you don’t need the wireless unit, because your charger already works as the connector to your computer.It managed to recover and update my Di2, but then refused to assign functions to the A-buttons and didn’t present a way to adjust the shifting speed faster, only slower (maybe it does but the SW is terrible and the terms are weird).So wireless box to the rescue. Slightly better UX and I managed to find how to adjust shifting speed and assign rear mech up-down to my A-buttons. Unfortunately it borked my Di2 again but this time even their Windows SW can’t recover it without the more advanced cable (not just the charger).
Word of caution. I bought this. Very easy to install. Connected to my android then crashed. And when I say crashed, it froze all shifting on the bike, not just wireless capability. Had to borrow a friends PC (as I only have a Mac), download the software to reset everything. Try to connect to my android again...crash. Whole process over and over. And....you cannot update the firmware on the wireless device from the PC like everything else that is Di2. Finally (after reading of others similar problems on the web) I downloaded the app to my iPad and problem solved. Firmware updated just fine. This sucks because I do not want to carry my iPad with me everywhere and I do not want to have to reboot everything, which included disconnecting every wire on the bike, to be able to make adjustments on the fly. The whole purpose is to be able to change when out there to tailor to what I like.Also weird that the app has problems on android, but not Apple. And even stranger that the computer program only runs on a PC, not a Mac. It does give you the adjustment you want, not without frustration.
Below are some positive reviews about SHIMANO Di2 Inline Wireless Unit
Read several reviews about how hard this is to setup. I think there are a few major details that need to be understood to make your experience much better. When you first connect to the unit it will have a default bluetooth passcode (six zeros). It asks you to update the passcode right away. Keep in mind that your phone remembers this connection and, thus, thinks the passcode is still six zeros. After getting through whatever initial setup processes you should disconnect the bluetooth from the main menu of the E-Tube app and then go into your phone and forget the bluetooth connection. Then repeat the same steps you did to initially connect but use your new passcode.Lastly, and this is important, you always need to disconnect the bluetooth in the E-tube app after you are done. Nothing will work when this unit is paired with your phone.Hope this helps
It's so small. It hardly seems like it's going to do anything. It seems odd to have the communication bits of the system is such an odd place. I questioned the whole idea of making a system that *can* connect, unable to connect by default, and also bike manufacturers that don't include this as part of their bike.And once you get this working, and I had zero problems, the system and E-Tube software identified this addition and updated the firmware and had it working perfectly. I did do all of the other updates before installing this so maybe that helped. I read the horror stories about failed updates, and 'bricked' devices. That could be because of all the updates installing at once. Don't know... No issues here.Get this for interaction with a Garmin unit, or other ANT+/Bluetooth bike computers with ability to record the telemetry. It's a nerdgasim to have all that DATA DATA DATA available. Plus the ability to tweak settings without a notebook and cable.
Got this and installed the same day. Purchased an extra wire for the connection to my di2 system and the tool to allow me to easily pop in and out the wires. All in all, setup was maybe 20 minutes max. All worked perfectly.I did first connect my di2 system to my computer and do an upgrade with the software on my PC, and only then did I connect with the IOS app and bluetooth with my head unit. I just wanted to be safe, and it all worked perfectly. Cool addition though shame on Shimano for not having this component be part of the product in the first place!
