Toshiba e-STUDIO 2555C Service Manual page 920

[D] Restore encryption key
Notes:
If turning the power ON while pressing [3] and the [CLEAR] button simultaneously or restoring
the key is not possible, update the system firmware using the download jig, and then perform this
procedure again.
 P. 11-27 "11.4 Firmware Updating with PWA-DWNLD-JIG2F"
(1) Turn the power ON while pressing [3] and the [CLEAR] button simultaneously.
(2) Enter the password, and then press the [OK] button. (If the password is not set for Service, press
the [OK] button without entering anything.)
(3) Key in [5] to select "5. Key Backup Restore", and then press the [START] button.
(4) Key in [1] to select "1. Key SRAM to FROM", and then press the [START] button.
(5) Wait until the restoring of the encryption key is completed. "Operation Complete" is displayed.
(6) Restart the equipment after the restoring is completed. If you want to perform the restoring of the
license, do not restart the equipment but perform from (4) in "[E] Restore license".
[E] Restore license
Notes:
If turning the power ON while pressing [3] and the [CLEAR] button simultaneously or restoring
the key is not possible, update the system firmware using the download jig, and then perform this
procedure again.
 P. 11-27 "11.4 Firmware Updating with PWA-DWNLD-JIG2F"
(1) Turn the power ON while pressing [3] and the [CLEAR] button simultaneously.
(2) Enter the password, and then press the [OK] button. (If the password is not set for Service, press
the [OK] button without entering anything.)
(3) Key in [5] to select "5. Key Backup Restore", and then press the [START] button.
(4) Key in [3] to select "3. License SRAM to FROM", and then press the [START] button.
(5) Wait until the restoring of the license is completed. "Operation Complete" is displayed.
(6) After the restoring is completed, check that "OK" is indicated in "SRAM License STATUS" and
"FROM License Status". Then, restart the equipment.
(7) If "4. License FROM to SRAM" is performed by mistake, carry out the following procedure.
 P. 9-40 "[ 1 ] Re-registration when the board is replaced"
[F] Update firmware version
(1) Update the version of system firmware using the USB device.
 P. 11-5 "11.2 Firmware Updating with USB Device"
(2) Update the version of scanner firmware with the USB device.
 P. 11-5 "11.2 Firmware Updating with USB Device"
[G] Data transfer of characteristic value of scanner
(1) Start up with the Adjustment mode (05).
(2) Enter the password, and then press the [OK] button. (If the password is not set for Service, press
the [OK] button without entering anything.)
e-STUDIO2555C/3055C/3555C/4555C/5055C
REPLACEMENT OF PC BOARDS/HDD
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