Not sure if it's been discussed before but it seems the trick to customize the two fields of the "Heart Rate" page has been "disabled" by Garmin in the latest version? A long press on the UP/Menu button while viewing that page only brings up "Music Controls"/"Back to Start"/"Lock Device"...Fortunately my previous settings (Lap HR and Average HR) have been kept. Anyone else notice that ? Thanks !
https://forums.garmin.com/showthread.php?348192-Customizing-HR-Data-Screen&p=831663#post831663
The same for me and I'd like to know if any possibility to change it by downgrading, changing and then upgrading.I'm sure it's possible, but to downgrade you'll probably have to physically take the FR235 into an authorised Garmin service centre, and have a convincing reason why staff there ought to downgrade the firmware on your watch for you (e.g. the latest update is known to have broken something that worked in firmware v4.10, and in doing so rendered the device no longer fit for purpose). Wanting to access an undocumented feature that you find handy is probably not a convincing reason.
Why so difficultyThere is simply no technical or commercial reason to offer software downgrades a user self-service facility. Your wanting it is not a good enough reason to make it available. Do you have a more convincing reason than that to suggest?
Do you have a more convincing reason than that to suggest?