In this article I will share a step-by-step process How to Update Shimano Di2 12-speed Shifter Lever Firmware through a wired DI2 cable connection. It is a fairly easy process that every home mechanic can do with the proper tools/spare parts and the Shimano E-Tube App. My Canyon Ultimate came with Shimano Cable Tool with product# TL-EW300 and the Shimano E-Tube App was already on my Google Pixel 10 Pro smartphone.
Shimano DI2
Vibe Stem with Shimano DI2 integration from PRO Bikegear
The latest version of the Pro Bikegear Vibe Stem has clever designed internal channels for routing the cables of Shimano DI2 integration.
The Vibe Stem from Pro Bikegear has been the preferred stem on the Pinarello Dogma K10 bikes from Team Sky in the Tour de France 2017.