How to Connect Shimano Di2 to E-Tube App

Founder, Mr. Mamil

The E-Tube app allows you to customize Shimano Di2 functionalities and update Di2 firmware versions wirelessly via Bluetooth. It’s available for 11 and 12-speed Shimano Di2 electronic shifting groupsets.

This article provides steps to wirelessly connect to the Shimano E-Tube app via Bluetooth.

E-Tube app prerequisites

For the E-Tube app to work, you’ll need :

  • 12-speed Shimano Di2 (Dura-Ace, Ultegra, 105), or
  • 11-speed Shimano Di2 (Dura-Ace, Ultegra, GRX)
  • BT-DN110 internal battery (for 11-speed)
  • EW-WU111 wireless unit (for 11-speed)

How to connect Shimano Di2 to E-Tube app

Follow these steps to connect the E-Tube app to the Shimano Di2 system.

  1. Download and install the E-Tube app on your phone from the Apple Store (iOS) or Google Play (Android).
  2. Launch the E-Tube App.
    • 11-speed Shimano Di2 (Dura-Ace, Ultegra, GRX). Enable pairing mode on the Shimano Di2 system by pressing and holding the button on Junction A. Depending on your bike’s setup, Junction A can be located below the stem, handlebar end, or downtube. The system is in pairing mode when the green and red LEDs flash alternately.
    • 12-speed Shimano Di2 (Dura-Ace, Ultegra, 105). Press and hold the function button on the rear derailleur. The system is in pairing mode when the blue LED flashes.
  3. If asked for a passkey, the default Di2 password is 000000. You can change the password in the E-Tube app for security reasons.
  4. The E-Tube App will list all connected Shimano Di2 components.
  5. You’re connected and can now update the firmware version, customize the shifting modes, or perform micro-adjustments on the front and rear derailleurs.

E-Tube app FAQ

Do I have to pay to use the Shimano E-Tube app?

What is the difference between the mobile and desktop app?

I’m having trouble connecting my Di2 system to the E-Tube App. What should I do?

Alex Lee at Mr.Mamil

Alex Lee is the founder and editor-at-large of Mr. Mamil. Coming from a professional engineering background, he breaks down technical cycling nuances into an easy-to-understand and digestible format here.

He has been riding road bikes actively for the past 12 years and started racing competitively in the senior category during the summer recently.