Huangli Yunpan

I have contacted the customer service in charge of Samsung account, saying that it is a group incident after C9 update, not because of our mobile phone or account, and they are handling it.

Let's stop fooling around.

Supplement: After the following operations, you can log in by pro-test.

Settings-Applications-3 points in the upper right-"Samsung Experience Service-Uninstall Update in the upper right.