A bug in the 1.2.7 firmware may cause the Rival power meter to become unresponsive during the “setup calibration” process. This issue can be resolved by updating your power meter to firmware 1.2.8 or newer.
To update your power meter to firmware 1.2.8, please follow these steps:
1. Open the SRAM AXS App and connect your power meter.
2. Select the Rival power meter in the app.
3. Follow the AXS App instructions to install firmware 1.2.8.
4. When the installation of firmware 1.2.8 is complete, your power meter will return to normal function. You can now complete the setup calibration and zero offset.
If you have any questions during this process, please contact our Rider Support Team.