Oki MPS5502 - Page 206

45641001TH Rev.1
6-20 /
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) 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“[H]
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.6-29“[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”