Garmin Instinct Solar Surf - Stuck on Reset Default Settings Yes / No ?

Hi i am having the exact same problem today. initially the set button wouldnt work and the connect android lost pairing so performed a reset by holding the ctrl button for 10s. Powered it back on and atr the same "reset default setting screen" with no doing nothing and yes returning back to the same screen. 

Hey, so turns out my SET button was stuck. I soaked the watch in warm water for 30mins. Then used a pin to gently go around the outside of the button. This then meant that when I did a Hard reset it worked : Power off the watch. Hold GPS, SET and ABC the power/turn on , first beep release GPS second beep release ABC & SET it should hard reset and get rid of the default screen . I think prior when doing the hard reset it wasn’t working because the set button was stuck …  
I then got the select language screen.. and was able to see the watch on iOS/ pc.. 

I hope this helps, x

Thanks a lot. I'll give it a try.

Also if it helps I spoke to support chat and was advised to try the below: (none worked me other than what I said above) It was a return under warranty if it didn’t fix it … Hope ya get sorted x

https://support.garmin.com/en-GB/?faq=waEtGnqrqpAjZ9Eg4iF7HA

https://support.garmin.com/en-GB/?faq=TVtJ74jg5E2yJzM3kS8iA9

https://support.garmin.com/en-GB/?faq=LePCURziXd4A5qZLwqKEwA

can you try for me a soft reset on the device and can you try The Buttons on My Garmin Watch Do Not Respond When Pressed or Appear to Be Stuck to make sure the buttons are responsive 

Can you also try syncing with the Garmin Express Application How Do I Install Garmin Express?

It can also be worth trying this tool to see if that can fully boot the device back on, This tool can detect and master reset a device plugged into a computer's USB port, you  will need to extract the files and install the tool onto the computer. click and download the file for the needed PC. extract install and run with the device plugged in, and run the tool this should take at most 15 minutes to work. 
[18:28:56] Connor:

• Select and download the file onto your computer.
  • Windows > http://download.garmin.com/support/Fitness/Resettool/PC.zip
  • Mac > http://download.garmin.com/support/Fitness/Resettool/Mac.zip
• Open the GarminReset.exe file.
• Plug your Garmin Watch into the computer’s USB port.
• Select RESET NOW.
• Once you see "Reset Complete. Your Device has been restored to its original factory settings" select Quit or Return to Main Menu.
  • The amount of time it takes a device to reset will vary. If you do not see the reset complete message after 10 minutes of the reset starting,
• Disconnect your Garmin Watch from the computer.

i was able to get all the way through to the resetting after the second beep but my watch is stuck on the Garmin splash screen for the last 10 minutes. Perhaps it takes a long time to complete the reset.

Same issue here, watch is 2 months old. trying to reset it using Resettool software but it is now stuck on garmin logo screen...
(Owner of Garmin Swim and Garmin Swim 2, no issues with those old models)

Must be a known issue as when I contacted support with a summary of the issue they offered a few basic troubleshooting actions and then processed an exchange