Toshiba e-STUDIO657 - Page 136

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ERROR CODE AND TROUBLESHOOTING
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[F100_2] HDD format error (HDD encryption key data damaged - both boards)
Take appropriate countermeasures shown in the table below according to the messages displayed in
“SRAM Key Status” and “FROM Key Status”.
Remark:
If the error is not cleared, reinstallation of the OS data, master data and application is needed.
Key Null
Key Broken
OK
Recover the encryption key on the SRAM board.
 P.9-27 "9.2.7 Precautions and Procedures when replacing SRAM
board" ([H]Backup encryption key)
Keymismatch Keymismatch <The error occurs when the SYS board is replaced>
Recover the encryption key on the SYS board.
 P.9-20 "9.2.4 Precautions and Procedures when replacing the SYS
board (for e-STUDIO556/656/756/856)" ([E]Restore encryption key)
<The error occurs except when the SYS board is replaced>
Replace the SRAM board.
 P.9-27 "9.2.7 Precautions and Procedures when replacing SRAM
board" (all steps)
Classification Error item
Other service call HDD format error: Encryption key data of both the SYS board and the
SRAM board for the SYS board are damaged.
Check item Measures
Encryption key status Check the displayed message. ([3] + [C] + [POWER] -> 5. Key Backup
Restore)
SRAM Key
Status
FROM Key
Status
Measures
* Access Failed Replace the SYS board.
 P.9-20 "9.2.4 Precautions and Procedures when replacing the SYS
board (for e-STUDIO556/656/756/856)" (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]Restoring procedure")
2. Recover the encryption key/license on the SYS board.
Follow the procedures below noted in  P.9-20 "9.2.4 Precautions and
Procedures when replacing the SYS board (for e-STUDIO556/656/756/
856)"
[D] Restore ADI key (only when ADI-HDD is installed)
[E] Restore encryption key
[F] Restore license
Access Failed * Replace the SRAM board.
 P.9-27 "9.2.7 Precautions and Procedures when replacing SRAM
board"
SRAM Key
Status
FROM Key
Status
Measures