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E-TUBE PROJECT is an application that allows you update your bicycle's firmware and change Di2 settings by connecting wirelessly.

Customize functions and operations as you please. Discover the settings that match your personal riding style.

Update firmware
The application automatically checks for new firmware each time it is started. This allows you to keep all units up-to-date at all times.

This function allows you to connect one or more units and read or write all the settings of those units at a time. The readout settings can be saved in a file. The settings can also be successively written to multiple bicycles.

What’s New

Version 3.3.3

・Adopted for Gravel/Adventure Road Bike rear derailleur, RD-RX805
・Bug fixing

Ratings and Reviews

1.9 out of 5
37 Ratings
37 Ratings
Ty-01 ,

Yep. Bricked it.

I like the idea of the app, just don’t use it for firmware updates. Everything else seems to work, but for sanity’s sake don’t update the firmware.

Jordan72727394 ,

Issues submitting changed password

The app does not give you the ability to change the password to connect to your DI2 after setting a new password up on your PC, there is no obvious way to forget the device to try an attempt to connect from scratch.

Pretty obvious oversight.

Bpk0004 ,

Wish I could give it 0 stars (bricked di2)

First of all, I love Shimano. They’re known for their exceptional quality and reliability and my R8050 groupset was a fantastic investment. However, this app is AWFUL!!!

Had to spend 90 bucks on the EW-WU101 adapter to get the Bluetooth connection and then after setting it up on the bike and trying to connect to the app it began updating the firmware. Then it stopped updating and COMPLETELY BRICKED MY ENTIRE DI2 SYSTEM! Lights wouldn’t turn on in junction box, gears wouldn’t shift, nothing.

Naturally I made sure all the connections were correct then plugged it into the E-TUBE software on my PC. After recognizing my components I then got a message telling me I couldn’t even update the EW-WU101 using the computer and had to use the app (a huge issue given that now every time I open the app it will just load and then say “incorrect password” despite never giving me the option to even enter a password). Plus it wouldn’t let me update the firmware on my rear derailed because of the error message (can’t be exited out of) with the EW-WU101.

I was able to fix the issue of my di2 system being bricked by disconnecting the EW-WU101 system then connecting the rear derailed the way it was before. Then updating the software on my rear derailer. However, I have tried since to update the firmware with the app but have had no success (still getting incorrect password issue mentioned before).

In summary, this app is straight up garbage and could potentially brick your entire group set (I was fortunate to find a solution, but if you look online, many were not so fortunate). Save your money and just live without the features this app offers.


126.2 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Chinese, Dutch, French, German, Italian, Japanese, Spanish
Age Rating
Rated 4+


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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