Versa 4 stuck on reboot loop

[MelanieParker]

I just unboxed my versa for yesterday. Initially, it turned on now, whenever I try to turn it on, it flashes the Fitbit symbol, and then I get an X and it turns off automatically. Sometimes I just get the Fitbit symbol for a second and then it turns off. I can’t get it to start again. It was charged all night and still is not working.

Moderator Edit: Clarified subject

[Talahthas]

Welcome to the Fitbit community, @MelanieParker!

Sad to hear that you're having an issue with your Versa 4.
As a first step to hopefully get things fixed, please try if restarting your device will work. To do so, just hold it's button pressed for around 10 seconds until you'll see the Fitbit logo on it's display.
As the behavior you mentioned could also indicate a discharged battery, I'd suggest having a closer look here for possible troubleshooting on that:

Why isn't my Fitbit device's battery charging? 

If your device is fully charged though, please try if changing the clock face will get things fixed. Here's how to do that:

How do I change the clock face on my Fitbit device? 

I'll keep my fingers crossed.

[KLJC]

The same problem happened to me.  The support team asked me to do the factory reset. It fixed the problem temporarily but broke again soon.
The screen won't turn on when pressing the button once. The screen showed a big red cross when pressing the button for 8 seconds.

[MarreFitbit]

Hi there, @MelanieParker @KLJC. Welcome to the Fitbit Community Forums. I'm sorry to hear that you both have been having issues with your Versa 4 devices. I appreciate your time in trying to fix the issue, I understand where your concerns were coming from. @Talahthas Thank you so much for your help and pieces of advice! 

I've seen you both contacted our Support Team just right after posting here and they've already assisted you. If you have any questions regarding the outcome of your case, please don't hesitate to reach out to our team again. It seems like you have exhausted all troubleshooting steps we could've provided here so there's nothing left we in the community can suggest other than reaching out to our team again. Since you already have a ticket open with them it'd be easier to continue the follow up on this matter with them directly.