Toshiba e-studio 3008 show f101 call for service error 13 . How can i solve it?

1. Turn the power of the equipment OFF and check the
connection of the HDD.
- Connector and harness check
- Check if the connector pins of the HDD are bent.
- Check if HDD for other equipment is not installed.
- Check if SRAM for other equipment is not installed.
2. If the error still occurs after step 1, perform the following.
- HS-75 File System Recovery mode ? Recovery F/S ? /
imagedata, and then restart the equipment.
- Perform FS-FAX ? 11 FAX CLEAR MODE ? [CUSTOM
INITIALZE] ? [CLEAR DATA], and then restart the
equipment.
3. If the error persists after step 2, perform the following.
- Perform HS-73 Firmware Assist mode ? Format HDD, and
then install "System Software (HD data)" with HS-49
Firmware Update mode.
Notes:
The following items will be deleted by performing HS-73
Firmware Assist mode ? Format HDD.
• Message Log
• Job Log
• Spool Data (Print, Email reception)
• Template
4. If the error persists even after step 3, perform the following and
then reattempt step 3.
- HS-74 HDD Assist mode ? Revert Factory Initial Status
HDD.
5. If the error persists even after step 4, replace the HDD.
6. If the error persists even after step 5, replace the HDD
harness.
7. If the error persists even after step 6, replace the SYS board.