MP3 Player User's Guide Model Number: MMP8550

23
TROUBLESHOOTING GUIDE (CONTINUED)
SYMPTOM CAUSE SOLUTION
No buttons work.
The Lock feature is Deactivate Lock feature as
activated. described on page 18.
Unit needs to be reset Reset unit and/or
or firmware needs to be update firmware, see
updated. pages 24-25.
Unit acting erratically. Unit needs to be reset Reset unit and/or
or firmware needs to be update firmware, see
updated. pages 24-25.