Toshiba Satellite M500 Maintenance Manual page 63

If any of the connections are loose, reconnect firmly and repeat Procedure 1. If
there is still an error, go to Check 2.
Check 2 The HDD/SSD may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures. If the problem still exists,
perform Check 3.
Check 3 The Main board may be damaged. Replace it with a new one following the
instructions in Chapter 4, Replacement Procedures.
Satellite M500/M505/M507 Maintenance Manual [CONFIDENTIAL]
2 Troubleshooting Procedures
2-27