I recieved the software version R8xxXXU1GVK4 yesterday morning and my watch was not turning on after update! Contacted samsung and they requested to visit service center. Now service center is saying it's a motherboard issue and it will cost 7050 Ind...
Brother raise your concern here, send a strict warning message, and they will help you out and make the repair free. Recently they repaired my watch for free after raising concern on the above link
Update : Raised the concern through the link, got call from concerned team and after diagnosing the watch, finally they decided it to repair the watch for free. Will update further