Same issue as was mentioned here - Index Smart Scale entire screen flashing white - Index S2 Smart Scale - Health & Wellness - Garmin Forums
The thread is locked, but thought I'd mention this again. I've had the Index S2 since it come out in 2020 and have never had this issue until today. As others stated, removing a battery and reinserting it fixed the problem, for now. I actually replaced all the batteries with fresh new batteries. Are other users still having this problem? Does it keep happening or is this workaround fix it forever? I would contact Garmin support, but since I've had this scale for over 3 years, I don't think they could do anything about it. Scale is on the latest version 3.30.