I upgraded to the latest rom (20170711) and I no longer have the option to connect as USB Mass Storage.
Is there a way to do this?
The reason is I sync between my computers and my SD Card with Folder Match as it is much faster than any app I have tried, problem is it will only work when the phone is connected as Mass Storage and now I do not have that option.

Edit
I have also tried out the previous version (20170622) and it doesn't have the mass storage option either.

I have the same problem so in mi case i was change the mode in mi pc... And now i can t change to the other mode....

Blackview seems to have NO answer..I also have the same problem and they never got back to me.

I will ask our technician about this.