If your Xiaomi Redmi Note 9 back cover has broken, buy a new one now, replace it and have your device new again with full warranty of compatibility with your device.
Do you have a broken screen on your Redmi Note 9/Redmi 10X 4G? Buy the Touch+Display Xiaomi Redmi Note 9/Redmi 10X 4G 6.53" Black and replace it with ..