If a new memory card is inserted in your Huawei smartphone, it is advantageous to format it. Existing files are deleted and any necessary directories are created.

Note: All data is deleted during formatting and cannot be restored.

Android 10 | EMUI 10.0
Step 1:  Open the  settings
Step 2:  Tap on  Storage
Step 3:  Tap on  Memory card
Step 4:  Tap on  Format
Step 5:  Confirm with  Erase & Format
  1. Open the settings
  2. Tap on Storage
  3. Tap on Memory card
  4. Tap on Format
  5. Confirm with Erase & Format

Huawei Instructions