Saturday, November 9, 2013

Laptop Lab Tech Motherboard Laptop Service Course Center Calicut


BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 

LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092
Posted by at 2 comments:

Laptop Lab Tech Laptop Board Level Repair Training Center Calicut


BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 

LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092
Posted by at 3 comments:

Laptop Lab Tech Laptop Motherboard Repair Training Center Calicut


BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 

LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092
Posted by at 4 comments:

Sunday, June 30, 2013

Laptop Toshiba Satellite C850 Bios Crash Recovery and BIOS password Reset


BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 

LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092
Posted by at 5 comments:

Saturday, May 4, 2013

Laptop Lab Advanced Technology Calicut

Laptop Lab Tech

Chip Level & Hardware Laptop Servicing Courses Calicut
BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 

LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092

Posted by at No comments:

Tuesday, April 30, 2013

BIOS Password Backdoors in Laptops


BIOS Password Backdoors in Laptops

When a laptop is locked with password, a checksum of that password is stored to a sector of the FlashROM - this is a chip on the mainboard of the device which also contains the BIOS and other settings, e.g. memory timings. For most brands, this checksum is displayed after entering an invalid password for the third time:

The dramatic 'System Disabled' message is just scare tactics: when you remove all power from the laptop and reboot it, there are not new penalties such as additional passwords, locks and so on. From such a checksum (also called "hash"), valid passwords can be found by means of brute-forcing. Another method commonly used is that instead of a checksum, a number is displayed from which a randomly generated password can be calculated. Quite often, vendors also resort to storing the password in plain text, and instead of printing out just a checksum, an encrypted version of the password is shown. Either way, my scripts can be used to derive valid passwords with the hash.

Some vendors have implemented obfuscation measures to hide the hash from the end user - for instance, some FSI laptops require you to enter three special passwords for the hash to show up (see other post). HP/Compaq laptops only show the hash if the F2 or F12 key has been pressed prior to entering an invalid password for the last time.

Depending on the "format" of the number code/hash (e.g. whether only numbers or both numbers and letters are used, whether it contains dashes, etc.), you need to choose the right script - it is mostly just a matter of trying all of them and finding the one that matches your laptop. It does not matter on what machine the script are executed, i.e. there is no reason to run them on the locked laptop.

For DELL

You are asked to enter the serial number of your device. Use ONLY CAPITALS for the serial number.

Press Enter and you'll get the password. Keep in mind that the passwords are encoded for a QWERTY-type keyboard layout (US-EN). Also, some models require you to press Ctrl+Enter after entering the password.

http://laptoplabcalicut.com/laptopservicecalicut/bios/biospassword.html
BASIC FUNDAMENTAL ELECTRONICS
Basic Electronics Analog and Digital
Using and Testing of Electronic Components and Practical Circuits
Difference between Ac and Dc Circuits and its Applications
Different Power Supply Devices and its Applications
Switch Mode Power Supply (SMPS) Technology and its usages
Pulse width Modulation (PWM) Technology and its Application in Laptop Motherboard
Dc to Dc Buck and Boost Conversion Technology and its Applications in Laptop Motherboard
LAPTOP MOTHERBOARD CHIP LEVEL PRACTICALS
Identification, Removal and Replacement of SMD Components on Laptop Motherboard
Chip Level Practical Using Smd Lead-free soldering iron Practices, SMD Chip Soldering and Disordering Practices and tips
LAPTOP MOTHERBOARD CIRCUIT LEVEL TRACING
Understand Block Diagrams of Laptop Motherboards and Identification of Different Chips on Laptop Motherboard
Identifications Different types of Ports and Slots on Laptop motherboard
Circuit Level Tracing Using Laptop ODM Motherboard Schematics, Deep Understanding of Short Circuits, Open Circuits and Closed Circuits
Tracing Circuit Level Voltage Measurements Power on Stage, Primary VRM, Battery Charging and Power Selector Section, Secondary VRM, RAM VRM, Processor Core Vcc, Standby-Power Sequence and Power On-Sequence
Laptop motherboard repair and troubleshooting methods
Laptop Motherboard Common Fault and Solution Steps
Laptop Motherboard Testing and Fault Finding Method
How to troubleshoot Laptop Motherboards Using IC’s Datasheet based Tracing and Function Details for Advanced Studies
LAPTOP SERVICE HARDWARE AND SOFTWARE COURSES
Laptop basics, laptop bios settings default setup and reconfiguration methods
Assembling and dissembling of different banded Laptops and Notebooks
Identification Different brands of laptop spare parts installation and replacement training
Advance methods of laptop hard disk re-partitioning and re-formatting using different 3rd party DOS based and windows based diagnostic tools
Operating system Installation methods (Windows, Linux, Mac OSX) normal bootable (DVD Bootable based) installation, Dos based installations external USB bootable and factory restore methods of different branded laptops
Laptop Operating system different device driver’s installation and configuration using laptop (notebook) brand support sites, Using driver packs and hardware id identification method
Installation configurations common types of software and applications in laptops and notebooks
USB drive and external portable hard disk advanced bootable methods (using open source grub2 Linux based MBR tools)
USB drive and external portable hard disk multi bootable operating system and diagnostic tools integration methods (open source Linux based MBR tools and grub4dos menu list editing and scripting)
Laptop operating system Emergency Back and Restore Methods using Norton ghost tools and Snapshot tools
Laptop Hard disk lost data recovery methods, Data recovery concepts live practical’s of using software based Data recovery tools
New Generation Laptop UEFI Bios setting and GPT Partition methods
Installation and configuration of windows 8.1 and Linux with UEFI bios, new generation GPT Partition based advance diagnosing tool and its usage
Installation Original Genuine Window 10 Offline Oem Activation
 
LAPTOP LAB ADVANCED TECHNOLOGY
2nd Floor Calicut Mall Building, 4th Building Behind Thottathil Silk
Stadium Puthiyara Road, Calicut-673004 Kerala
Call Us : 09995060022 09995060077 09995060091 09995060092
Posted by at No comments:
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