Wellue O2Ring screen is dying

[amenite]

Noticed recently the screen on this thing is getting super dim. It gets light/moderate use. I tried changing the display brightness via the app, no change. Also the factory reset, and also no change. This particular one is two years + a few months old, well past the 1 year warranty. Disappointing for sure. I suppose it will still be usable even with no display at all but with alot less functionality. Hopefully the dimming stops at the "barely readable" stage it's at now. I'll have to dig up the USB cord and see if anything more can be done.