Registered Device cannot be Deleted [12/2013 - ]: Procedure

1. Check if a registered portable player can be deleted normally.

   OK

   Registered portable player can be deleted normally.

   Result

   Proceed to
   OK
   NG

Result:  1

OK 

END 

Result:  2

NG 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - 11/2015]  Refer to  PROBLEM SYMPTOMS TABLE [11/2015 - 11/2016]  Refer to  PROBLEM SYMPTOMS TABLE [11/2016 - ]