After firmware upgrade, there are several errors in the 840 - Sram etap 11s communication:
- incorrect reading of the gearings, continuosly alternating e.g. 50 - 34
- annoying beep every about 10 seconds
- the rear derailleaur stop to work (!). I cannot confirm it is because of the upgrade, but it happened two times, the second one after deleting the sensor and repeating the pairing.
I had to disable the sensor, otherwise it is impossible to ride with the continuous beeps of the Edge
Is it possible to downgrade the firmware?
SP
