1, open Xiaomi 6, find the settings, and click Enter;

2. Find more settings and click "Enter";

3. Click the developer option, close the function behind the analog sd card optimization, and then restart the phone.

4. If you can't find the developer option, find the version number of the mobile phone and click it five times in a row to enter the developer mode.

A hundredfold care, 10 satisfaction.