If you’re having trouble using Instagram on your Xiaomi device, try the following steps to make sure permission is granted for the app to access the phone’s camera.
- On your Xiaomi phone, find and launch the Security app.
- Tap Permission.
- Tap Manage App Permissions.
- On the Permission tab, find and tap Use camera.
- Find and tap Instagram.
- Make sure Allow is selected.
Note: In my testing, I could see that without the above permission, Instagram would close by itself whenever I wanted to capture a photo using it.
Note: The steps here were written for a Xiaomi device running MIUI V5. If you’re having a different version of MIUI, there’s a possibility that the steps and screenshots will be different.