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Have you tried a different battery/checked that the battery works in another derailleur?
Tried holding the AXS button while installing battery?
Jameo-
Thanks @Jameo this button hold while installing battery approach worked to get the lights firing. However the derailleur now seems to be in a firmware update doomloop where it updates through the app but then immediately identifies itself as needing the same firmware update again. All the while being unable to connect to the shifters.
JustJ4
SRAM Rival AXS help needed!
My rear derailleur has just stopped working. No signal to any connected device. No movement when I press the axs button. No lights. Nothing.
Battery is fully charged.
Connection points have been cleaned and cleaned again with contact cleaner. They are nice and springy and I can feel the contact being made when I install the battery.
Shifters are communicating with the app. Derailleur is not.
Was working fine until yesterday when, after a few dormant days, I picked up the bike and went out for a ride but with no gears. Components are out of warranty, though I have raised a ticket with SRAM helpdesk.
Does anyone have experience of this with SRAM or know of any fixes?