Send the following on WhatsApp
Continue to Chat【watchOS 教學】Apple Watch 更新卡住等很久?強制 WiFi 連線快速搞定! https://app.yipee.cc/115220/%e3%80%90watchos-%e6%95%99%e5%ad%b8%e3%80%91apple-watch-%e6%9b%b4%e6%96%b0%e5%8d%a1%e4%bd%8f%e7%ad%89%e5%be%88%e4%b9%85%ef%bc%9f%e5%bc%b7%e5%88%b6-wifi-%e9%80%a3%e7%b7%9a%e5%bf%ab%e9%80%9f%e6%90%9e/