Sense stuck on reboot loop

[KPart]

Hi all.  My Sense 2 is in a constant reboot power off/on loop.  The side hard on-off button on the left side isn’t breaking the perpetual cycle.  Is there another way to break the cycle?  Do I just let keep going until the battery completely depletes and try to charge it?

Moderator Edit: Clarified subject

[MarreFitbit]

Hello there, @KPart. Thanks for stopping by in the Fitbit Community Forums and sharing the details about the issue with your Sense.

Please note the issue you're having comes from performing a factory reset without first unpairing your Fitbit device from your Fitbit account and phone's Bluetooth settings. With that being said, I suggest following the steps below in the order listed:

• Unpair the Fitbit Sense from the phone's Bluetooth and also make sure it's no longer connect to the Fitbit app. 
• Force quit the Fitbit app.
• Turn off the Bluetooth.
• Shut off the phone and turn it on after 1-2 minutes.
• Turn on the Bluetooth.
• Set up the Fitbit Sense again.
• If there is no connection, restart the Fitbit Sense.

If you can't get started with the Fitbit Sense, usually a missing requirement is the cause. Carefully review the requirements provided in the help article Why can't I set up my Fitbit device? 

I've moved your post to the Sense board for organization purposes. 

[Cthefish]

Mine is doing something like this too. Started buzzing continuously and the side button isn’t responding. The screen is black and if I pick it up it buzzes at me, will not link to Bluetooth at all. Did you get yours to work again?