Why is there the word +86 on the front of the mobile phone in Shanghai now?

The main problem is the SMS system of mobile communication service providers. This display will not bring any interference to the SMS function, but it will be more troublesome to display users. If it was before, you could see the user name stored in your mobile phone, but now it's not working. This situation belongs to the system upgrade, and it should be fine in a couple of days.