Please update the current firmware, M:USE of your M to the new one, 0.95V,
Please download the 0.95v here:
How to install is the same as before.
Please read the instruction attached and follow it.
The contents of this update includes:
1. Impededance selection
2. M4A support: AAC and ALAC
3. Improvement of Quick View
4. Improvement of media scan when reboot
5. Display of file format at each track
6. Search and history of search
7. New U.I .for update
8. Battery Gauge Calibration improvement
9. Folder Play
10. Sub menu of the Library is editable