α
-7
Message
Meaning
Countermeasure
Sub-folders
in this folder
cannot be
displayed
• In
the
MEMORY
mode, a level 3
nested storage memory folder is
displayed, and it contains a level
4 nested folder. (The level 4 folder
will be displayed, but it cannot be
opened.)
• Use your computer*
1
to store all
files you want to access in the top
three folder nesting levels.
File System
ERROR
• The calculator memory file system
is corrupted or the storage memory
format is one that cannot be read by
the calculator.
• After reading the information
under “Important!” below, perform
an Initialize All operation as
described in “Reset” (page 9-3).
Important!
Performing an Initialize All operation
will delete all data in calculator
memory, including language data.
If you need the data in calculator
memory, use the USB cable to
connect the calculator to a computer
and copy all of the data you want to
keep to your computer’s hard disk*
1
before performing the Initialize All
operation.
*
1
For details about using a computer to perform storage memory file and folder operations, see “To
transfer data between the calculator and a computer” (page 10-3).
