How to retrieve Xiaomi SMS deletion?

If the short message is not backed up, it is generally unrecoverable after deletion. If you want to inquire about the short message list, you are advised to log in to Unicom's online business hall, and click "Inquiry" > "Other Business Inquiry" > "Details of SMS and MMS" on the home page to inquire about the details of SMS and MMS in the last six months. You can also bring valid documents to the local Unicom's own business hall for enquiry, and the specific situation is subject to local policies. The above path is subject to the information actually displayed on the query page.