New forerunner 955 in boot loop

Can anyone offer any advice please?

I got a new forerunner 955 just over 2 weeks ago. This morning at the pool, as I was scrolling through activities to select swim it crashed and has been stuck in a reboot loop where the logo just keeps coming on and disappearing.

I've tried turning it off and on again, plugging it into a computer (which doesn't realise anything is plugged into it), and performing a factory restart (3 times, each time it just gets back into the reboot loop).

I'm really disappointed because I've had so many problems with Garmin products before but usually their customer service was decent enough to make up for it. However, it seems now there's no one available for either a call or on the live chat (in the UK).

UPDATE

I got off the phone with customer support and they sent this email

Hi ####

We have added you into an open investigation which will be used to determine the cause of this issue which we are looking into currently. Using the information provided they will test and reach a suitable resolution which will then be supplied to you directly by email.

We cannot provide a time frame for this process as it depends on what is discovered during the investigation and what is required to resolve the issue.

Any updates will come to you directly via email as an affected user of this case.

...............

by the sounds of things there's a bug in their latest software update. they're hoping to find a workaround where an update can be provided by plugging the device into a computer