Sense 2 keep showing logo

[mark8888]

My sense 2 keeps showing the logo. When I try to reboot, it shows a red cross. Sometimes after charging the problem goes away, but after less than 12 hours the problem comes back again. Is it because of the battery problem? 

Everything is updated, i tried factory reset, still doesn't work. Now the watch is basically useless, it won't last for more than 12h. 

Moderator edit: clarified subject.

[ManuFitbit]

Welcome to the forums @mark8888. 

Thank you for sharing these details about the difficulty that you are experiencing with your Sense 2. Sorry to know the issue. 

Please make sure to follow the steps listed here, below:

1. Sync the device in the Fitbit app.

• From the Today tab in the Fitbit app, tap Devices.
• Chooose the Sense 2.
• Tap Sync Now.

2. Check for available Firmware updates.

• With the Fitbit device nearby, open the Fitbit app (make sure the Fitbit device is charged).
• Tap the Today Tab > Devices > your device.
• Tap Update (This option only appears if an update is available).

Follow the on-screen instructions: Keep the Fitbit device close to your phone during the update. When the update starts, a progress bar appears on the device and in the Fitbit app until the update is complete.

3. Charge the device:

Double-check the connection: Ensure secure connection to the charging cable and that the cable is plugged into a working USB port (computer or UL-certified wall charger).

If these steps don't work:

4. Restart the device: Keep in mind that your data won't be deleted: How do I restart my Fitbit device?

5. Changing the clock face via the Fitbit app can sometimes resolve the issue:

• Open the Fitbit app.
• Choose Device Settings.
• Navigate to the clock face options and try selecting a different clock face.

[Serendipity28]

I have the same issue as the OP. I've also performed each one of the steps list and the issues remai. It works during the day but will flag the fitbit logo flashes on randomly at nigh and by morning stops working completely. I've also performed each one of the steps list and the issues remain. 

What else is the problem now?