Toshiba e-STUDIO477S Service Manual page 150

SRAM Key FROM Key
Status
Keymismatch Keymismatch
e-STUDIO477S/527S/477SL
ERROR CODE AND TROUBLESHOOTING
Status
<The error occurs when the SYS board is replaced>
Recover the encryption key on the SYS board.
 P. 6-18 "6.2.4 Precautions and Procedures when replacing
the SYS board" ([D]Restore encryption key)
<The error occurs except when the SYS board is replaced>
Replace the SRAM board (for the SYS board).
 P. 6-22 "6.2.5 Precautions and procedure when replacing
the SRAM board (for the SYS board)" (all steps)
Measure
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