Toshiba E-STUDIO4508A - Page 771

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ERROR CODE AND TROUBLESHOOTING
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[F109_3] Key consistency error (HDD encryption parameter damage)
Take measures given in the following table according to the messages displayed in the SRAM Key
Status and FROM Key Status fields.
Remarks:
If the error is not cleared, reinstallation of the OS data, master data and application is needed.
Classification Contents
Other service call Key consistency error - Parameter used for HDD partition
encryption are damaged.
Check Item Measure
Encryption key status confirmation Check the message displayed by [3] + [C] + [START]  5.
Key Backup Restore.
SRAM Key
Status
FROM Key
Status
Measure
* AccessFailed Replace the SYS board.
 P. 9-19 "9.2.4 Precautions and procedures when replacing
the SYS board" (all steps)
<With USB backup data: All key data recovery>
1. Recover all the data on the SRAM board.
[5] + [9] + [POWER]  2. Restore SRAM Data from USB
(For details, see "12.1.4Cloning procedure [B]Restore
procedure")
2. Recover the encryption key/license on the SYS board.
Follow the procedures below noted in  P. 9-19 "9.2.4
Precautions and procedures when replacing the SYS
board".
[C]Restore ADI key (only when ADI-HDD is installed)
[D]Restore encryption key
[E] Restore license
AccessFailed * Replace the SRAM board.
(for the SYS board).
 P. 9-25 "9.2.8 Precautions and procedure when replacing
the SRAM" (for the SYS board, all steps)
OK KeyNull/
KeyBroken
Recover the encryption key on the SYS board.
 P. 9-19 "9.2.4 Precautions and procedures when replacing
the SYS board" ([D]Restore encryption key)
AccessFailed OK Replace the SRAM board (for the SYS board).
 P. 9-25 "9.2.8 Precautions and procedure when replacing
the SRAM" (all steps)
KeyNull/
KeyBroken
OK Recover the encryption key on the SRAM board.
 P. 9-25 "9.2.8 Precautions and procedure when replacing
the SRAM" (for the SYS board, [H]Backup encryption key)