I posted to this thread in March 2021 about my problems with the Charge 3 screen going black. Suddenly this week, I started receiving emails of posts to this thread and realized it was still active. Consider this an update with maybe a possible fix.
In my original post, I said I was going to try the Versa 3. And, I did. The display was brighter than my charge 3 ever was, but the haptic feedback was lousy. It's supposed to vibrate when I get a notification or alert but that rarely happens. When it does, it's random. Forget about reminders to move, if I get one a day I'm lucky. But, that's not why I wanted to post this update. I found myself actually needing the SPO2 data the Versa provided so I kept it. Before discarding the Charge 3, I did a factory reset to clear my personal data. When I did that, the brightness was restored. And, it stayed bright. Just guessing, but I suspect the memory where the settings and personal information was stored got corrupted somehow and resetting to factory reinitialized all the settings. I don't know whether that will work for anyone else, but if you've tried everything else it's one more thing to try as a last resort before you toss it. I don't know if you can reassociate your Charge 3 to the app and your account without losing your data. I transferred the Versa 3 to the account replacing the Charge 3 before doing the reset.and it kept everything. But, I don't know if you can do that when it's the same device. If you try it, please post here and let us know whether it worked for you.
