2023 Subscriptions P McDonald Posted April 5, 2019 2023 Subscriptions Report Share Posted April 5, 2019 Urgent help required ! My Di2 seems to have lost its brain. So I tried doing the crash reset thing and it should cycle though the gears, however it is doing all sorts of random things even during the reset when you spin the cranks and it should cycle though the gears. When I activate the levers afterwards it can go in either direction! Tried disconnecting battery but that didn't work either ?! Any advice very welcome ps - Galeb I will be out on winter bike in the morning anyway Quote Link to comment Share on other sites More sharing options...
alanhendry Posted April 6, 2019 Report Share Posted April 6, 2019 GP Lama uploaded a vid to YouTube not that long ago when he tried to update the firmware on his new giant. Went wrong and everything stopped working. He basically had to disconnect everything and reconnect bit by bit updating the firmware as he went. Solved his problem and may help you... Quote Link to comment Share on other sites More sharing options...
2023 Subscriptions P McDonald Posted April 6, 2019 Author 2023 Subscriptions Report Share Posted April 6, 2019 thanks Alan will check it out Quote Link to comment Share on other sites More sharing options...
Committee Alan McLean Posted April 9, 2019 Committee Report Share Posted April 9, 2019 You can download free Shimano e-tube software to a laptop and plug it in for diagnostic check. I used it once and it correctly told me that a connection was loose. Quote Link to comment Share on other sites More sharing options...
2023 Subscriptions P McDonald Posted April 10, 2019 Author 2023 Subscriptions Report Share Posted April 10, 2019 Thanks Alan, long story short - I did use etube and called helplines etc. Etube saw no fault and registered gear 1 when it was actually in gear 2 etc. Ultimately Dooleys put the diagnostic kit on and the rear mech has been diagnosed with alzhiemers. New one fitted. Old one 10 days left on 2 year warranty so that might be a stroke of luck. Unbelievably I have gone through 2 rear mechs in 3 years. Other than that Di2 is brilliant in my view. alanhendry 1 Quote Link to comment Share on other sites More sharing options...
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