1040 Auto detect FTP stopped working after using FR 265 for HR

6374227 23 days ago

My Edge 1040 stopped auto detecting FTP, across three different bikes/power meters, and used to work with all of them. FW version is 20.19, but the last time FTP was updated was in July 2023, don't know which FW version it was on at the time.

Timing coincides with when I started using a Forerunner 265 for HR as a sensor on the 1040 rather than a Garmin chest HR.

Is it a known limitation that auto detect FTP doesn't work when using a Garmin watch as an HR sensor?

Thanks

Top Replies

Cristox 22 days ago +1

Garmin watch is not a good hr sensor In general, especially while riding a bicycle.

You should go back to your chest strap.

All Replies

0 Cristox 22 days ago

Garmin watch is not a good hr sensor In general, especially while riding a bicycle.

You should go back to your chest strap.

0 6374227 22 days ago in reply to Cristox

Thanks, got it. I'm not too worried about slight inaccuracies, though, more about the question if using the watch as an HR sensor will prevent the 1040 from doing the FTP detection. Do you know?