Toshiba e-STUDIO6520C Service Handbook page 617

[B] When the update of HDD program data / system firmware / UI data (master data) failed
USB update failed
Failed twice or more?
Check HDD harness connection.
Update succeeded?
Check HDD/ROM version.
" 8.4 Confirmation of
NO
Is HDD/ROM version correct?
Update completed
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NO
YES
Update USB.
NO
YES
the updated data "
YES
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Update USB.
Replace HDD.
Update USB.
YES
Update succeeded?
NO
Replace SYS board.
Update USB.
e-STUDIO5520C/6520C/6530C
FIRMWARE UPDATING
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