Calibration Send Error

Dear Developers

In the process of using MRC: found that correction here has been unable to pass. Tip: there was an error sending the calibration file to your quest: could not write to files access to the path "/storage/emulated/0/android/data/com.oculus.accountscenter/files" is denied

and Why can't the official demo of the application see MRC support in the list after the MRC is enabled

Hope the official website output of the document more detailed. After all, there are a lot of whites