Tips & Tricks : Remove CMOS Password. by james

The simplest way to remove a BIOS password is to simply remove the CMOS battery. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by small battery inside the computer called a CMOS battery. If we pull out this battery, the computer will forget alot of its hardware settings, including its BIOS password.

 A BIOS password is a protection measure that can be used to stop someone powering up a computer system or making changes in some of the computers most sensitive areas.
 Here are some methods to bypass or remove a BIOS password.


Any laptop computer has a CMOS battery also known as RTC battery. The CMOS battery connects directly to the laptop system board and helps to retain important BIOS settings such as system time, date, BIOS configuration while the laptop is turned off or even when the main battery is removed.
The CMOS battery is rechargeable and it’s getting charged when the laptop is plugged into the mains.

 Here’s another type of CMOS battery. Basically, it's coin cell batteries but they are bundled and have a cable which plugs into the system board. This battery is removable and replaceable.

 Take out the CMOS battery and wait 10 – 25 minutes before putting it back in. The reason for this wait is because the computer can still store power in its capacitors even though everything is unplugged. The waiting period allows enough time for them to discharge.
Plug everything back in, power up the computer and enter the BIOS again. If everything went well there should be no more password. In some cases, if you get weird error messages during bootup now, you will need to goto “Load BIOS Defaults” in BIOS and save the changes to fix them.
Assemble now your laptop..
Note : Make sure all screw and other parts are get back in original position.
Restart now.

Laptop Screen inverter board : Tips and tricks

In this post I explain how you can fix a laptop Inverter problem ( lights failed )
These are the other ways to fix it. Tested by me :D

This repair might apply to some ACER laptops and probably some other laptop brands.

Do you have a problem with the backlight on your laptop? If yes, you are not alone, that’s one of the most common laptop problems. In most cases the screen inverter is the culprit. Here are some LCD screen backlight failure symptoms that could be related to a bad inverter board:

NOTE: if you cannot see an image on the screen (not even very dim image), most likely you have a different problem and there is nothing wrong with the screen inverter.

First of all, unplug the AC adapter and remove the battery.
In order to access the inverter board you’ll have to remove the LCD screen bezel. On most laptops screws are hidden behind screw seals. In this case we have 5 screw seals on the front. Carefully remove the seals with a sharp object and glue them on the LCD bezel, in this case you will not lose them. Remove all screws and mark them somehow so you are not confused when you assemble the notebook back.

 Carefully lift up the FL inverter and rotate it a little bit. Unplug cables on both sides. The left side of the inverter board connects to the video cable, the right side to the backlight bulb (CCFL tube) inside the LCD screen. Remove the inverter and replace it with a new one.

After removing inverter, lets see this my procedure.

In this action, just email me or leave a comment.

Testing now.

There is no guaranty this method works all the time. While doing this repair you may damage the motherboard and make it unrepairable. Also, you may damage the laptop while taking it apart.
Proceed at your own risk and don’t blame me if you turned your laptop into a very expensive door stop.
 If you don’t feel comfortable doing this repair, take your laptop to the repair shop.
Or send an email to me. or call us to 09302304513, itr's free.. 

Laptop Screen inverter board

Laptop inverter boards (also know as LCD inverter, FL inverter, screen inverter, backlight inverter) come in different shapes and sizes. On the picture above you see some typical looking inverter boards found in laptop computers.

The inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. The inverter board converts low voltage DC power (few volts) supplied by the motherboard to high voltage AC power (few hundred volts) needed for the backlight lamp.

When the inverter board works properly, the backlight lamp gets power and the LCD screen lights up. As a result, the image on the screen is bright.

HOW INVERTER CONNECTED TO LDC SCREEN

On the picture below you can see a typical laptop display assembly which includes the LCD screen, video cable and inverter board.
One side of the inverter board connects to the backlight lamp and another side to the video cable (LCD screen cable).

HOW INVERTER MOUNTED INSIDE LAPTOP DISPLAY PANEL

In most laptops the inverter board is mounted below the LCD screen as it shown on the picture below. You can get an access to the inverter board when you remove the screen bezel – a plastic frame around the LCD screen.

TYPICAL INVERTER FAILURE SYMPTOMS

Usually inverters fail in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

Blackberry Tricks & Tips

Let's we learn how to repair our Blackberry smart phone. In this post (image below) is how to repair keypad trouble / keypad problem for Blackberry 8310 and 8320 series.

Picture : Keypad track ways of Blackberry 83xx series.

But remember, this thread only used for spesified or professional person only. Use on your risk. And I hope it's helpful..


These are the other some tips :
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