Apple Watch Boot Loop

Hi, I am currently at my wits end with my Apple Watch. It was due an update, which I hadn’t yet carried out. I then didn’t wear it for 3 days & it ran out of battery. It seems that in the process, it has become stuck in a boot loop & all I have is the Apple logo.

I have asked Google multiple questions, read & followed multiple tips & advice, watched multiple YouTube videos & nothing is working. A general restart does not work, a forced restart does not work, charging it does not work (I left it on charge all night).

However, after reading some of the tips & advice yesterday evening, I unpaired the Apple Watch. Of course, because I have no access to it (as I can’t get past the Apple logo on the display screen), I now cannot pair it up again.

I have used a PC to log in to my iCloud, however, of course it is no longer listed as a device, because it has been unpaired. I can’t pair it again using the ‘Watch’ app, because it’s stuck in a boot loop & I can’t do anything with it.

I am out of ideas & honestly don’t know what to do next. Surely there has to be a way out of this?

Any tips, advice or help will be gratefully received, thank you.