Oki MC770 - Page 209

45584901TH Rev.1
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Oki Data CONFIDENTIAL
[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rmware usingthe downloadjig, and
then perform this procedure again.

P.8-20"8.4FirmwareUpdatingwithPWA-DWNLD-JIG2"
(1) urn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licenseisnotpossible,updatethesystemrmwareusingthedownloadjig,and
then perform this procedure again.

P.8-20"8.4FirmwareUpdatingwithPWA-DWNLD-JIG2"
(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. 6-27 "[1] Re-registration when the board is replaced"
[F] Update firmware version
(1) Update the version of system firmware using the USB device.

P. 8-3 "8.2 Firmware Updating with USB Device"