You can restore the factory settings and see if it is possible. If it is not possible to call Xiaomi's customer service phone, the customer service will help you solve the problem. Some of the 169 text messages are true, but some of them are fake. According to the situation of everyone, I suggest that when you receive the 169 mobile phone text message, you should judge according to your actual situation. Xiaobian has received many tips from banks inviting to open a credit card. The short messages received by Xiaobian are all fake. This kind of short message claiming to be a bank suggests that you don't believe it. It is easy to steal your personal information. No one will be responsible for any problems. It is too late to investigate any problems.