Reset BIOS Supervisor Password

Many times it happens that our computer vendor often lock our computer BIOS with Supervisor Password. So, if we ever need to change boot device settings or any other settings in our BIOS then we have to go to the service center to do it. Here, I will show you how to bypass the Supervisor Password and reset it.

How To:

1. Switch On the Laptop.

> Go to BIOS Setup on startup. The BIOS will request for Supervisor password. Enter anything, for 3 times, and then the system will display a System Disabled message.

Enter Wrong Password

Ignore Warning

2. System Disabled Code.

> Write down the code displayed below the System Disabled message. You need to generate the BIOS backdoor password.

Note down this code

3. Backdoor Password Generation.

> On a computer with Internet connection, go here and enter the code, you got in previous step. This site will generate a backdoor password for you.

Go to the link provided

4. Restart Computer.

> Again go to BIOS Setup screen, again it will ask for Supervisor password, now enter the Backdoor password that you got from the website. There you go, you just unlocked your BIOS. 

Enter the password you got from website

 

5. Change Password.

> Now go to Security tab in the BIOS, and change Supervisor password to whatever you want or keep it blank. Whenever it asks for old password, type in the Backdoor password.

Now change the password

It is as simple as that..!!

Using Mobile As Modem

Hi readers in today's world we normally use wireless devices for our communication. The best means of communication is Mobile which is accepted all over the world,so we can use mobile for connecting to our Laptops by means of Bluetooth.  For using your mobile as modem, your mobile must contain a Bluetooth device and which provides Dial Up Network(DUN) Service.

1. Activate your Bluetooth device of Phone.

2. Activate your Bluetooth device of Laptop.

3. Now pair your Phone Bluetooth with your Laptop Bluetooth as shown in figure below:

4. Go to Bluetooth settings which will open the window as shown below:

5. Click on the ” + ” button at the bottom shown below so that you can add your Bluetooth device:

6. Select your device and press continue to proceed.

7. See  to it that your pin matches with the pin which is displayed on your screen and click matches if it matches.

8. Check the box to access the internet using your mobile phone(DUN), which will detect your phone configuration ans show the following steps:

9. Now Set up your Mobile Broadband Connection press continue to proceed, as shown in figure below :

10. Select the country and press continue,

11. Select your provider and continue,

12. select your plan for internet from the list given, as per your billing plan, and continue to proceed.

13. Confirm Mobile Broadband setting and click on Apply.

14. You will not get the the message as “Your Device Is ready To Use”.

15. Now select the Provider name from the list of wireless connections available,and wait till it connects.

16. Now go to the proxy settings and select the proxy as “No Proxy” and then access the internet.

How to continue your laptop's system even after closing its lid

Hi friends, I will describe a technique to continue your processes like copying huge files, downloading files, playing music players or installation of any programs about which we rarely have some idea about the time it will require to complete and this all can be done even closing your laptop's lid without switching your laptop to sleep mode or hibernate or anything.

It always happens with us while working on laptop; we get interrupted by some other urgent work which needs some time. So to complete that, we have to always save our data and close our lid and leave it. Which turns our laptop to sleep mode and sometimes to hibernate and it’s very difficult when we have to carry our laptop while some processes like downloading or copying of files is running. We cannot interrupt such programs otherwise it may waste our lot of time.

Also, it’s very irritating to cancel your copying or downloading or installation of applications just for your daily routines like a boring lunch or to attend a call or to meet a friend who is waiting at your door just for small chat or discussion. Suppose you want to hide that thing from your friend’s eye, you can simply close your lid without cancelling your process. So, here windows had introduced the best solution to our problem i.e., continuing our processes even after closing laptops flap or lid.

Windows had recently shown some small changes in power modes. Everything can be decided by a user. Here is the method to make changes.

                                                          Fig:1

Note: Only for laptops having windows7 / windows8

Method:

Go to settings - Control Panel

Generally, we can find control panels on everyone’s desktop, but if you can't find it go for the search button in start menu, you will definitely get there. 

Select the option “Hardware and Sound”

 You can see the first column with the third choice is “hardware and Sound”.

This menu style may change from system to system, but for the option we are searching is in Hardware and Sound.

Fig:2

Go for the Power option in the menu provided

You can directly see here the required option “change what Power buttons do” by double clicking on that we can get the required page.

                                                       

                                                           Fig:3

Now, you will get many choices like

    a) Choose what a power button does.

    b) Choose what a sleep do.

    c) Choose when i close my lid.

 Here for the lid options, double click on it.

  Fig:4

 Again you have choices to save your changes in “On battery” mode or “Plug in” mode

For successful savings in your changes, reboot your laptop

 We can also change different things such as “What a power Button does” means while shutting down your laptop what the user wants. In which mode it should go, so that when he/she returns should catch up immediately. You can also play tricks with this with your friend’s laptop.

Have fun, enjoy your long term processes now without interruptions.

Check you laptop battery and thermal status in Linux

Advanced Configuration and Power Interface (ACPI) specification provides an open standard for device configuration and power management by the operating system. First released in December 1996, ACPI defines platform-independent interfaces for hardware discovery, configuration, power management and monitoring. The specification is central to Operating System-directed configuration and Power Management (OSPM), a system implementing ACPI, which removes device management responsibilities from legacy firmware interfaces.

The standard was originally developed by Intel, Microsoft and Toshiba, and were later joined by HP, and Phoenix. The latest version is "Revision 5.0", which was published on November 23, 2011.

ACPI aims to consolidate, check and improve upon existing power and configuration standards for hardware devices. It provides a transition from earlier standards to entirely ACPI-compliant hardware, with some ACPI operating systems already removing support for legacy hardware. With the intention of replacing Advanced Power Management, the MultiProcessor Specification and the Plug and Play BIOS Specification, the standard brings power management under the control of the operating system (OSPM), as opposed to the previous BIOS-central system, which relied on platform-specific firmware to determine power management and configuration policy. [Reference: Wikipedia, see this link].

If you are working with any GNU/Linux operating system then you may use the command ‘acpi’ to see the laptop battery status and other acpi information. It displays information about the ACPI (Advanced Configuration and Power Interface) system, based on the /proc/acpi file. Most GNU/Linux systems doesn’t contain this command by default. Install it by using:

sudo apt-get install acpi

Picture-1 Installatiom of 'acpi'

As shown in the picture above, the acpi will be downloaded from Ubuntu website and installed on your system. It nearly takes 70.7 KB after installation. Now you may use the command by its various options, as listed below.

Picture-2 Using 'acpi' and options

 -b, --battery

          Display battery information.

-B, --without-battery

          Do not display battery information.

-t, --thermal

          Display temperature information.

-T, --without-thermal

          Do not display temperature information.

-a, --ac-adapter

          Show whether the AC adapter is connected.

-A, --without-ac-adapter

          Do not show information about the AC adapter.

-V, --everything

          Show all information on every device.

-s, --show-empty

          Display information even on devices that are not available or not installed, such as empty slots for extra batteries.

-S, --hide-empty

       Do not display information on devices that are not operational or not installed.

-c, --Celsius

          Use degrees Celsius as the temperature unit. This is the default unit.

-d, --directory /path

          Use the specified path to ACPI information. The default path is /proc/acpi.

-f, --Fahrenheit

          Use degrees Fahrenheit as the temperature unit.

-h, --help

          Displays help information.

-k, --kelvin

          Use degrees Kelvin as the temperature unit.

-v, --version

          Display version information.

Try this command. It is very interesting and useful too.