How to Connect Shimano Di2 to E-Tube App

Written by : Mr Mamil
Last updated :

Disclosure : I may earn an affiliate commission when you purchase through links on this page.

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

The Shimano E-Tube app is free to download for everyone.

The mobile version connects wirelessly via Bluetooth and can perform basic maintenance tasks, which are adequate for most cyclists.

The desktop version requires the SM-PCE01 or SM-PCE02 linkage device and connects via the USB port on a PC. Bike shops use it to perform advanced maintenance and troubleshooting tasks.

First, ensure your smartphone’s Bluetooth is enabled and you have Shimano Di2 Wireless Unit installed. If you’re still unable to connect, try resetting the wireless unit by disconnecting and reconnecting it from the battery.