Why can't third-party APPs open the front camera of the POCO F7 Pro?

We apologize for the inconvenience caused. The POCO F7 Pro has been inspected strictly before leaving the factory, so you can rest assured of its use.  
To resolve the issue of the front camera not opening in third-party APPs on your phone, please refer to the following steps:
1. Please try restarting the phone to reset any temporary software glitches that can be affecting the camera;
2. You can also try clearing the cache and data of the affected third-party APP or reinstalling it;
3. Please make sure your phone is running the most recent system update.