I have iwatch series 2, i want to pair it with my iphone 12 pro. In iphone it said that u have to go to settings for check update. When do to setting, all are up to dated. I dan do anything. On iwatch it said that have to continue d updates. what to

I have iwatch series 2, i want to pair it with my iphone 12 pro. In iphone it said that u have to go to settings for check update. When do to setting, all are up to dated. I dan do anything. On iwatch it said that have to continue the updates.

before my iwatch is not connecting to any iphone. Before i set in my iphone 5s.

So what should i do? Anyone can help me?

thanks..