Back button and Samsung pay

[Vh4]

My Galaxy watch active 2, purchased 7/10/20. Samsung Pay keeps popping up constantly, tried rebooting it and force stop to Samsung pay and than the back button will not work now. Please advise on how to fix this. 

Thank you 

[Troubadour]

Just something else to try. When you are on the same screen as force stop, look at storage and empty the cache (if that is available in watch settings).
Google "samsung pay keeps appearing". There are several reasons and things to try.
Also https://www.tenorshare.com/samsung/fix-samsung-back-button-not-working.html

[Jonstep]

Just ran into the same issue on my original samsung galaxy watch active.  Hadn't done anything special with it in a month. And my back button doesn't work anymore, so I'm starting to think it's a hardware issue. Frustrating since everything else worked fine up until now, sadly I'm out of warranty.

[Martin Brocker]

I signed up to the community just to post the fix that has worked for me (after trying everything already on the web). 

The back button is the root cause of this issue. My watch was no longer under warranty so I decided to open it up. surprisingly easy as the screws are mounted for the main body of the watch, and not the back cover (charging face). Pop the charging face off carefully as there are wires to connect the charger to the main body. Get a small pin or screw driver and wiggle the tiny back buttons' board a bit to loosen/remove the dirt/gunk which as built up over time. after doing this, the back button started working normally again and the Samsung Pay app stopped popping up every few minutes.

The issue is that the back button gets stuck (stops working) and triggers the Samsung Pay to keep popping up. 

Hope this helps anyone else experiencing the same issue...

[Ant-Rugby-UK]

Thank you. I'm going to try this solution. I'm confident it will work. Thanks.