It seems the links to the old firmwares of 2.5 and 2.6 are MIA... anyone have a downgrade package for those firmwares? 2.7x-2.8 has completely broken the OHR measurements for me during intense workouts... and it's pretty much useless now. So I want to jump back to a version that actually worked.
I am unable to get OHR to read consistently above 110 BPM it seems... it will sometimes go up to 150 during intense workouts (when my HR is well above that) then drop down to 90... when I am still doing the same workout. I tried hard resets, cleaned sensor, other wrist, turn off Swim OHR, etc... Ever since going to 2.7 and now 2.8 its all kinda pointless.