On afternoon of 9/15/23, my Charge 5 stopped syncing to the app.

[Nanoline]

On afternoon of 9/15/23, my Charge 5 stopped syncing to the app. No bluetooth conflicts (Charge 5 is only bluetooth connection).  Charge 5 seems to have some data on the phone, but sleep doesn't seem to be included. Anyway, need this to work!  Bought 2/9/23 so can probably a new one under warranty, but prefer to fix this one if possible. Thank you!

[mchili]

Same thing happened to me. Still not connecting to Bluetooth. Tried all the usual “fixes” but still nothing. App “looking” for device even though it’s right next to phone. 

[Nanoline]

Ah, I see now that Firmware version: 57.20001.188.58 was applied and then it stopped working. 

[Nanoline]

I've now done 3 resets. Nada. 

[Nanoline · Accepted solution]

Rebooted iPhone 11. Rebooted computer. Restarted Charge 5. Did that cycle twice and then everything worked again. Whew!  You can close this conversation.

[mchili]

Mine is now also working again! 

[Nita501]

I'm still trying to get mine working again. I fell asleep and woke up to a black screen about 5 hrs ago