Oki MB760 Service Manual page 141

[F109_4] key consistency error (license data damage)
Classification
Other service call
Check item
Encryption key status
confirmation
Take measures given in the following table according to the messages displayed in the SRAM
Licence Status and FROM Licence Status fields.
Remarks:
If the error is not cleared, reinstallation of the system firmware, system software and application
is needed. ([4]+[9] → Power-ON)
SRAM Licence
Status
*
AccessFailed
KeyMismatch
* AccessFailed or KeyMismatch
45641001TH Rev.1
Key consistency error - The license data are damaged.
Check the message displayed by [3] + [C] + [POWER] → 5. Key Backup
Restore.
FROM Licence
Status
AccessFailed Replace the SYS board.
 P. 6-18 "6.2.4 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 "9.1.4 Cloning procedure [B] Restore procedure")
2. Recover the encryption key/license on the SYS board.
Follow the procedures below noted in "6.2.4 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
* Replace the SYS board.
 P. 6-22 "6.2.5 Precautions and procedure when replacing the
SRAM board (for the SYS board)" (all steps)
KeyMismatch <The error occurs when the SYS board is replaced>
Recover the license on the SYS board. (Transfer the license from SYS-
SRAM to SYS-FROM.)
 P. 6-18 "6.2.4 Precautions and Procedures when replacing the SYS
board"([E] Restore license)
<The error occurs except when the SYS board is replaced>
Recover the license on the SRAM board. (Transfer the license from
SYS-FROM to SYS-SRAM.)
 P. 6-22 "6.2.5 Precautions and procedure when replacing the
SRAM board (for the SYS board)"([I]Backup license)
Oki Data CONFIDENTIAL
Contents
Measures
Measure
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