What should I do if Apple Watch slows down after updating Watch OS2 system?

1. My Apple Watch has updated the firmware of a beta version of Watch OS2 Beta5 with the size of150mb. Under normal circumstances, at the current broadband speed, it usually takes about 30 minutes. However, because Apple's update server is abroad, it may take several hours to display if there is a problem.

2. If the display update speed is too long and abnormal, we should change the wireless DNS address on the iPhone to speed up the download. First, please open the Settings app on the iPhone.

3. Next, in the list of settings, click the "WLAN" column.

4. Then click the "Information" icon on the right side of the currently connected wireless network.

5. Next, we change the DNS column to the address of 8.8.8.8. This DNS address is provided by Google and is applicable all over the world, which can improve the speed of accessing Apple's update server.

6. If nothing unexpected happens, after the DNS address is changed, the speed of downloading updates will be qualitatively improved.