The Camera app on my Redmi Note keeps showing the “Insert SD card before using camera” error message. I can’t take any photos with this message showing on the screen.
I’m using my phone without an SD card, and I’ve turned off “Save to SD card” in the Camera settings.
You might have accidentally deleted the DCIM folder in your phone storage. Use File Explorer to create the DCIM folder and the error message should disappear.
If you can’t create the DCIM folder, reload your phone and then launch the Camera app. The MIUI system should be able to create the DCIM folder by itself.