sensors stop functioning after software update on s3 watch

I bought samsung galaxy S3 watch in Canada. synced with gear in canada google play store. returned back to india. play store same canada. after 1 year changed play store to india. software also auto upgraded to TIZEN 4.0.0.4. Version R760xxU2ESF2. since then complete sensory functions stopped. I don’t know what is the reason. took watch to samsung service centres in mumbai. They have no idea. one says motherboard other says its a Canadian watch. I am stuck without sensors working. All other functions OKAY. Pls help.