Toshiba Tecra A8 Support Question
Toshiba Tecra A8 Support Question
Find answers below for this question about Toshiba Tecra A8.Need a Toshiba Tecra A8 manual? We have 2 online manuals for this item!
Question posted by nncomputer on August 5th, 2013
Bios Locked Problem.
I have the Toshiba tecra a8 laptop but it's bios password is locked.How can i open this laptop ?
Current Answers
Answer #1: Posted by TommyKervz on August 5th, 2013 4:10 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,843
Member since:
January 10th, 2013 Points: 17,776,843
Greetings - You best bet is to visit your nearest Toshiba Care as neither bios flash on bios battery removal was found to work on this model.
Related Toshiba Tecra A8 Manual Pages
User Manual - Page 192
... Utilities Fingerprint Authentication Utility
Fingerprint Authentication Utility
The fingerprint authentication utility can also be used to replace the keyboard-based user/BIOS password authentication system when booting up. Toshiba does not guarantee that the fingerprint utility will be completely secure or error-free. Fingerprint Enrollment
Use the Enroll or Edit Fingerprints wizard to...
Maintenance Manual - Page 4
... Overview describes the TECRA A8 series / Satellite Pro A120 series system unit and each FRU.
Chapter 2
Troubleshooting Procedures explains how to diagnose and resolve FRU problems.
Chapter 3
Test...layout ‰ Wiring diagrams ‰ BIOS rewrite procedures ‰ EC/KBC rewrite procedures ‰ Reliability
iv
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
Maintenance Manual - Page 8
... board 4-41 4.17 RTC battery ...4-42 4.18 Modem jack ...4-44 4.19 Fan...4-45 4.20 System board...4-47 4.21 Battery lock...4-49 4.22 HDD cable ...4-51 4.23 Heat sink/CPU ...4-52 4.24 PC card slot ...4-56 4.25 LCD unit/FL inverter...Bluetooth antenna 4-65 4.29 Hinge...4-71 4.30 Speaker...4-73 4.31 Fluorescent Lamp...4-77
viii
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
Maintenance Manual - Page 9
...
Appendix A Handling the LCD Module A-1 Appendix B Board Layout B-1 Appendix C Pin Assignments C-1 Appendix D Keyboard Scan/Character Codes D-1 Appendix E Key Layout...E-1 Appendix F Wiring Diagrams F-1 Appendix G BIOS rewrite Procedures G-1 Appendix H EC/KBC rewrite Procedures H-1 Appendix I Reliability...I-1
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
[CONFIDENTIAL]
ix
Maintenance Manual - Page 23
... used. - 320KB for System BIOS - 64KB for VGA BIOS - 64KB for Fingerprint sensor - 64KB for LAN BIOS - 24KB for Boot - 16KB for Parameter Block - 32KB for Option Log - Internal Graphics Controller : Inter Generation 3.5 Integrated GFX Core (250MHz) - System Memory controller : DDR2-400/DDR2-533/DDR2-667, 2GB(max)
TECRA A8 /Satellite Pro A120 Maintenance Manual...
Maintenance Manual - Page 54
...detected on Fingerprint sensor, perform the Fingerprint sensor Troubleshooting Procedures in Section 2.16.
2-6
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) 2 Troubleshooting Procedures
2.2 Troubleshooting Flowchart
If the diagnostics program cannot detect an error, the problem may be executed several times to confirm which diagnostic test detected an error, then...
Maintenance Manual - Page 56
... shows an error code.
If the icon is a problem with the power supply. *1 Any condition other than those above , check the followings:
Check 1 If the DC IN icon blinks orange, go to Procedure 2. NOTE: Use a supplied AC adapter G71C0004A510 (3-pin)/ G71C0002SC10 (2-pin).
2-8
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) Re...
Maintenance Manual - Page 68
Replace the system board with a new one .
If the problem still occurs, perform Check 2. 2 Troubleshooting Procedures
2.3 Power Supply ... adaptor and system board and connection. If the problem still occurs, perform Check 2. Check 2 System board may be faulty. Replace the AC adapter with a new one .
2-20
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) ...
Maintenance Manual - Page 70
... settings to Procedure 3. Then the system reboots. If any other error message displays, perform Check 3.
2-22
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) 2 Troubleshooting Procedures
2.4 System Board Troubleshooting
Procedure 1 Message Check
When the ... FAILURE.
Check 1
If one of the following error message appears when data stored in the BIOS ROM.
Maintenance Manual - Page 73
...
If Checksum check error occurred on except Boot Block or rewrite is required by user, go to RAM
Memory clear
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
[CONFIDENTIAL]
2-25 BIOS rewrite process
Initialization of SC Key input (skip when returned to S3) Enables CPU cache
Only PIT CH0 initialization (for models...
Maintenance Manual - Page 74
...
F009
Saving key scan code
Setting of TASK_1ms_TSC
FAN control
Initialization of sound
When request BIOS, EC/KBC rewriting When BIOS renewal is prohibited
When BIOS ROM is definite. Directory start header and calculates the sector Read 1 sector of the... (720KB) Retrieval of "CHGBIOSA.EXE" and "CHGFIRMA.EXE"
2-26
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
Maintenance Manual - Page 75
... checksum check Initialization of CMOS data (1) Setting of IRT status Storing DRAM size in system BIOS Resume error F179H SM_RAMBIOS_ERR
Expansion memory checksum check Resume error F176H RSM_EXTMEM_ERR
PnP RAM checksum check Resume error F177H RSM_PNPRAM_ERR
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
[CONFIDENTIAL]
2-27 Controller Initialization of ICH.D31.Func3...
Maintenance Manual - Page 76
...C0000h to EFFFFh to PCI (Prohibition of DRAM)
Setting of resume error request
Copying ROM/RAM of system BIOS (HLT, when error occurs)
F104
Security check
F105
SMRAM initialization
APIC initialization
WakeUp factor check
SMRAM base rewriting ...SMI except auto-off function
Judgment of destination (country) from DMI data
2-28
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
Maintenance Manual - Page 79
... initialization completion, VGA BIOS initialization
Update of system BIOS (Update of EDID information for LCD) Waiting...LOCK process (model supporting I/O LOCK)
Initialization of ATA priority in Boot mode
Key input check during IRT (waiting here completion of KBC initialization)
Input password (Waiting completion of HDD initialization)
I/O LOCK process (model supporting I/O LOCK)
TECRA A8...
Maintenance Manual - Page 80
...value in 40:00h (for SIO saving/restoring) Setting of font address for resume password
Setting of repeat parameter for USB KB
Final check of key input during IRT
...BIOS Hibernation) Initialization of Bluetooth (for models supporting Bluetooth)
Check for existence of target maintenance card
Prohibition of unused PC card not used
Setting Wakeup status data for ACPI
2-32
[CONFIDENTIAL]
TECRA A8...
Maintenance Manual - Page 81
...F124 FFFF
Initialization of SC
Clears IRT status
Renewal of checksum of PWRBTN_STS Enabling POWER Button
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
[CONFIDENTIAL]
2-33 Initialization of HW just ...before BOOT and waiting the completion Notifies the DVI connection status to VGA BIOS
(models supporting DVI) Setting of battery save mode Setting of date Waiting for Bluetooth ...
Maintenance Manual - Page 82
... required by user, go to "BIOS rewrite process"
Initialization of SC
When error, holts. Transits to System BIOS IRT
BIOS rewrite process
Initialization of South Bridge
Configuration of DRAM
Permission of cache (L1 cache only)
Memory clear
Transition to real mode and copy of BIOS to RAM
2-34
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual...
Maintenance Manual - Page 83
... Reading of first sector, If it is the data of "CHGBIOSA.EXE" and "CHGFIRMA.EXE"
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573)
[CONFIDENTIAL]
2-35 Reading of EXE header of ...
Setting of TASK_1ms_TSC
FAN control
Initialization of sound
When request BIOS, EC/KBC rewriting
When BIOS renewal is prohibited
When BIOS ROM is abnormal Key input
Reading CHGBIOSA.EXE / CHGFIRMA.EXE...
Maintenance Manual - Page 88
... completion, VGA BIOS initialization
Update of system BIOS (Update of EDID information for LCD)...LOCK process (model supporting I/O LOCK)
Initialization of ATA priority in Boot mode
Key input check during IRT (waiting here completion of KBC initialization)
Input password (Waiting completion of HDD initialization)
I/O LOCK process (model supporting I/O LOCK)
2-40
[CONFIDENTIAL]
TECRA A8...
Maintenance Manual - Page 120
..." button. 9. After displaying [User Enrollment], click [Next].
2-72
[CONFIDENTIAL]
TECRA A8 /Satellite Pro A120 Maintenance Manual (960-573) Click "Create Account". 5. Type the password again. 8. Logon by user's account to make your files and folders private" appears in "Type a new password". 6. Open [User Account] from [Control Panel]. 2. When "Do you want to register the...
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