System Firmware - Toshiba e-STUDIO 2555C Service Manual

11.4.2

System firmware

The system firmware can be updated individually by using PWA-DWNLD-JIG2F.
Important:
• Be sure to shut down the equipment before installing and removing the download jig.
• Do not shut down the equipment during the update. The data could be damaged and not be able
to be operated properly.
[A] Update procedure
(1) Write the ROM data to be updated to the download jig (PWA-DWNLD-JIG2F).
(2) Press the [ON/OFF] button to shut down the equipment.
(3) Take off the rear cover.
 P. 4-6 "4.1.15 Rear cover"
(4) Take off the SYS board cover.
 P. 9-1 "9.1.1 SYS Board cover"
(5) Connect the download jig with the jig connector (CN104) on the SYS board.
(6) Turn the power ON by pressing the [ON/OFF] button while simultaneously holding down the [8]
and [9] keys.
(7) Press the [Firmware Update] button, then press the [1] key to select "1.SYSTEM
FIRMWARE(OS Data)".
(8) Confirm the item to be updated.
"=>" is displayed next to the selected item. Display or delete the "=>" by pressing the number of
the item.
(9) Press the [START] button. Updating starts and the processing status is displayed on the LCD
screen.
(10) "Update successfully completed." is displayed on the LCD screen after the updating is completed
properly. Turn the power OFF by pressing the [ON/OFF] button.
Notes:
"Update Failed." is displayed at the bottom of the LCD screen when the updating is not
completed properly. "Failed" appears next to the failed item on the status display. In this case,
shut down the equipment and check the following items. Then clear the problems and restart
updating from the beginning.
• Is the download jig connected properly?
• Is the updating data written to the download jig properly?
• Do the download jig and the equipment operate properly?
(11) Turn the power OFF using the main power switch, remove the download jig, and then install the
SYS board cover and rear cover.
(12) Turn the power ON using the main power switch while holding down the [3] and [C] keys
simultaneously.
(13) Press the [5] key to select " 5. Key Backup Restore", then press the [START] button.
(14) Restore the key and license data by following the steps below.
• Restore the key data by pressing the [1] key to select "1. Key SRAM to FROM", then press
the [START] button.
e-STUDIO2555C/3055C/3555C/4555C/5055C
FIRMWARE UPDATING
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