I took the OTA update for my AT&T LM-V600AM (LGV60). This put me onto software version "V600AM10w", with the December 1st, 2020 security patch. I have attached screen shot. Since the update, my AOD (always-on-display) will not work. I have deleted the cache and restarted, I have deleted and redownloaded the AOD's I wanted and reinstalled them. I have toggled the AOD on and off. No luck. I am out of ideas. Does anyone have a clue? phone info here.