Hi,
I have a 640 XL on W10M.
When i connect it to my pc, it only gets recognized as a device that is read only.
The SD card does not get mounted as a drive.
Whats up with that?
I can't see the other half, did you check the signs?
The read only tick mark is greyed out for all sub folders. there were no permissions on the sd card.
Chech Memory sensor in Phone and find Release card securely, then update Windows pc Explorer.
Did by chanche enabled encryption in Phone?