Sony ICD-ST30 Operating Instructions Manual page 61

If an error message with a number is displayed
If the following error display appears, please consult your nearest Sony
dealer.
Error number Cause
"ERR 01"
"ERR 02"
"ERR 03"
"ERR 04"
"ERR 05"
The IC recorder cannot access the memory or cannot
format the memory.
The IC recorder cannot write (record or erase) the data
in the memory.
The IC recorder cannot read the memory.
The IC recorder cannot load or write the settings.
An error other than the above occurs.
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