Frequently asked Questions If you have any questions regarding Di2 chances are they are covered either in the Di2 for Dummies page or this list of Frequently Asked Questions.
However, it is of course possible that your specific case is not listed here. In that case just get in touch and I'll do my best to help you get back on the bike!
App error message: Enter in 6 half-width numerals E-Tube Project Wireless unit How do I install the EW-WU111 D-Fly on my 12-speed Di2 bike? Wireless unit 12-Speed Where do the spacers on 12-speed Shimano cassettes go? Road 12-Speed Gravel (GRX) Can I use a 12-speed SRAM cassette with my 12-speed Di2? Road 12-Speed E-Tube Project 3.4.5: there may be a problem with the internet connection E-Tube Project Settings Can I use a 12-speed chain with 11-speed Di2? How about cranksets and chain rings? Road 12-Speed 11-Speed My TT/Tri bike no longer automatically shifts the front derailleur Synchronized Shifting 11-Speed 12-Speed My 12-speed Di2 bike is unresponsive, how to reset 12-speed Di2 Road 12-Speed Battery When I change my Di2 cassette, do I have to change settings in the app? Synchronized Shifting Road Settings How do I update my SM-PCE1 firmware so that I can use E-Tube Project V4? E-Tube Project Can I use Dura-Ace / Ultegra shifters with 105 Di2 derailleurs? 12-Speed Road What is the difference between EW-SD300 and EW-SD300-I wires? Road 12-Speed How do I see Di2 info on my HammerHead Karoo 1 or Karoo 2 device? E-Tube Cyclist mobile app doesn't start on Android phones E-Tube Project Wireless unit How do you replace a Di2 wireless shifter battery? Road Shifting Battery How do I update my wireless R9270 / R8170 / R7170 levers? Road E-Tube Project 12-Speed E-Tube Project Professional won't work with my charger. I don't own SM-PCE02! E-Tube Project How can I determine a Shimano component manufacturing date? How do I update my SM-BCR2 Charger firmware so that I can use E-Tube Project? E-Tube Project How can I reset my Di2 system? When should I replace my Di2 battery? Battery How do I check the battery charge level? Road Gravel (GRX) Can I use my Dura-Ace Di2 7970 with newer hardware? Road I read that I can mix different series hardware. I tried, but it doesn’t work? Road MTB Gravel (GRX) STEPS How long will the battery charge last? Battery How does this site generate income? Can I use a GRX crank with a road or MTB front derailleur? Road Gravel (GRX) MTB Do I have to use a B Junction in my Di2 build? (11-speed Di2) Road Gravel (GRX) MTB Can I use the MT800 display on my road bike? Road MTB Gravel (GRX) Wireless unit I had a crash and my rear derailleur stopped working. How do I reset it? Road Gravel (GRX) MTB 11-Speed 12-Speed Can I use my road shifters with mtb derailleurs? Or the other way around? Road MTB Gravel (GRX) How do I use e-Tube software on my Apple Macbook? My Di2 won't connect to the mobile app Wireless unit More LEDS come on after I check the battery level - what do they mean? Synchronized Shifting 11-Speed 12-Speed I can't remember my e-Tube mobile app passkey. How do I reset that? Wireless unit Where is the Di2 manual? Road 11-Speed MTB 12-Speed Gravel (GRX) How do I connect or disconnect Di2 electric wires? What do I need to use Synchronized Shifting? MTB Synchronized Shifting Road Gravel (GRX) How do I enable or change Synchronized Shift mode? Road MTB Gravel (GRX) Synchronized Shifting My Di2 front derailleur is rubbing the chain. How do I fix that? Road Gravel (GRX) MTB Shifting How do I update Di2 firmware? How does the e-Tube synchronized shift map work? Synchronized Shifting What is e-Tube? And e-Tube Project software? Settings Where can I download Shimano e-Tube? Di2 Software? Settings E-Tube Project E-Tube asked me to change the passkey and now it won't connect Wireless unit I cannot shift to the smallest sprockets when in the small chain ring Road Settings When is Shimano Di3 going to be released? And 12-speed Di2 for MTB? MTB Road Gravel (GRX) STEPS I pressed the button on the junction box, but bluetooth won't connect Wireless unit Battery E-Tube Project 