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!
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 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 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 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 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 More LEDS come on after I check the battery level - what do they mean? I can't remember my e-Tube mobile app passkey. How do I reset that? Wireless unit 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? Where can I download Shimano e-Tube? Di2 Software? 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 When is Shimano Di3 going to be released? And 12-speed GRX Di2? MTB Road Gravel (GRX) STEPS I pressed the button on the junction box, but bluetooth won't connect Wireless unit 