Laptop Repair Made Easy
It also does not increase the likelihood of catching thieves or the return of a stolen laptop because
Stolen laptops are often stolen along with other belongings which could likely include the original owner's identity and or paperwork regarding the laptop. A thief who finds that the laptop they have stolen is protected by a password will not feel remorseful at this barrier, and seek out the legitimate owner so that they can return it. By the time any action might be taken by police the thief will likely have given up on the laptop and gotten rid of it, or passed it along to someone else. There will be no evidence, and no returned laptop. If authorities confiscate a laptop which they believe is stolen
Anyone who has the laptop in their possession can remove the hard drive in about 10 seconds, put it in another laptop or computer (or copy it to another hard drive) and access it. These laptops, to my best knowledge, come equipped with the ability to enable a Hard Drive password. This is what hard drive passwords are for If the hard drive password is enabled, regardless of its circumventability, a second password will not make the data super secure. If one password can be thwarted, then 2 can be as well. So we are left with the stark realization that Dell's password security scheme is nothing more than a selling point. Something that will cause someone to buy one of their laptops, instead of another brand, because of a perceived safeguard - which is in reality, nothing more than ineffectual hype. 1. The laptop 2. A small screwdriver 1. The laptop 2. A small screwdriver
If you have read this far you probably own a Dell or similar laptop with a password that is obviously stored in a Non-Volatile chip, or are an employee of a company that makes one. These laptops have most of their setting information stored in Volatile (inexpensive) chips, and their passwords are stored on a tiny Non-Volatile (more expensive) chip. The laptop that was used in this demonstration is a Model 630 type PPX. Other laptops may be different from the one shown in the full breakdown demonstration photos. If a certain laptop does not correspond to any of these diagrams, more information might be found on the web, or, anyone not reading for informational purposes only - could decide to simply Wing it. A program called KILLCMOS.EXE is reproted to work for this laptop. The chip (C24O4N) is located on the bottem of the laptop right next to the two DIMM slots Laptop - Screwdriver - Paperclip And remember, when using a screwdriver, it's righty - tightey, lefty - loosey. _ Some of...
I have seen and heard about people who offer to sell new blank 24C02 chips to people, so they can unsolder their old one, and then re-solder the new one in. This will work, if all goes well and the new chip has not been damaged. These people, and their websites, attempt to convince anyone needing to clear a password on particular laptop models that they have only one recourse. That they must purchase one of these chips, and either attempt to solder it in, or pay for a costly chip soldering replacement service. That's right There are 24C02's everywhere. What You had been thinking that they had to be ordered from a special website, because they were specially made just for your laptop Heck, no. They are everywhere, most easily found on DIMM's. On a DIMM they store the information about the manufacturer, size, speed, type, error checking capability, and even how the rows and columns of memory are ordered and addressed. But they are not just on DIMM's. Remember, these chips store...
When stealing a laptop, either off a park bench, while slipping into an office, breaking into a home or car a thief will not pull out their handy 'list of laptop models that are protected by an irremovable password , and leave the notebook there. Thieves steal according to opportunity, and even if they are aware that a laptop might be protected by a password, they will likely steal it anyway. If they can't break the password, they can just throw it away, as it did not cost them anything, and has no investment value to them.
In order to clear the password on the chip, some of the laptop must be put back together. This is because the laptop will need to be powered on during the process. Seeing how easy it was to disassemble, this is not a difficult task. Now the laptop is ready to and there is free access to the password chip which is located on the bottom of the motherboard. Now, you are probably thinking to yourself 'Wait a minute I just put almost the entire laptop back together The wascally wabbits that made this thing sure made it difficult to get to that chip '
The task having been accomplished, the laptop is now reassembled in the reverse of the disassembly process. Note that not all screws are interchangeable, and care is taken to put the right screw in the right place. Now that the laptop has been cleared of the password, the primary and administrative password fields in setup both show disabled.
So, now you want to set your own password for the laptop. After having read all of the reasons why setting a password will not prevent theft or access to the laptop or data, and after demonstrating how such a password can be removed, it seems rather ironic. But there may be reasons why you would want to do so. * As far as I know, these tags are only used for dell laptops. The Service Tag is a combination of letters and numbers that uniquely identify a particular computer, somewhat like a serial number. It is used by Dell technical support to be able to identify a particular computer when someone calls them. This tag is a 7 letter field. It would have been the first 7 letters (before the dash '-') which were displayed when the laptop started before the chip was cleared. This tag may be filled with any combination of numbers, letters, and some punctuation marks. The Asset Tag is for laptops that are owned or distributed by a company for company and or employee use. It is so named...
The chip (C24O4N) is located on the bottem of the laptop right next to the two DIMM slots. short the pins (3 and 7) IMMEDIATELY AFTER hitting the power button. The only method I have been told of, (as I have not had a chance to work on one of these models myself) is by soldering or otherwise attaching 2 small wires (insulated or covered wires) to the leads legs of the chip. Then running them out of the laptop where they can be connected after the laptop is turned on. And replacing the processor very carefully. It is very important to make certain that the heat sink is properly attached to the processor before attempting to turn on the laptop. Also, processors are very sensitive to damage and static charges which can damage them. One must always be very careful when working with processors. Taking the laptop out of the case reveals a slim machine with no floppy, no CD-ROM, and a single PCMCIA and USB port on the side. This laptop requires a docking station if you need access to normal...
Also if this particular model of laptop is different from that may be being worked on, the chip may be in another location and a good view of what it looks like will aid in being able to find it. Now the power adapter is plugged in and connected to the laptop, but the laptop is not powered on just yet. With the laptop open at roughly a 90 degree angle, and lying on it's back, the 2 indicated pins are jumped (or connected by touching one with each end of the paperclip) while the power button located on the other side, near the keyboard, is pressed, turning it on. The laptop will turn on, and a screen like this should appear. Fn-X may be pressed if desired. Also, setup may be entered by pressing F2. And the paperclip, if it hasn't already been removed, should be.
Disassembly of the Inspiron 8100 8200 can be accomplished rather easily. The only external component necessary to remove is the keyboard. The screws shown by the blue arrows need to be removed from the bottom of the case. For clarity, they are marked on the case by an encircled 'K', to differentiate them from screws for the palmrest, display, and memory. (Luckily, the original creators of the laptop did not give all these parts names beginning with the same letter. Second, the cover is slid towards the bottom slightly, both unlocking it and creating a handle, by which it can be pulled out of the laptop. (Actual chip may look different. This picture simply shows the proper orientation.) In order to turn the laptop on while jumping the chip with a paper clip the hdd, the power circuit board must be replaced, and the cover as well. Use a as power adaptor If red don't work, try purple pins
The palmrest is released from the rest of the assembly by the removal of 5 screws on the bottom of the laptop. These are indicated here by red arrows They are also indicated on the bottom of the laptop by a circle with the letter 'P' inside of it next to the location of each screw. The official repair manual for this laptop stated that the display must be removed before the palmrest can be taken off. But, as you can see, for anyone who is mechanically inclined enough to be able to cross a country road, this is not actually necessary. (Although this procedure does require the removal of the screen, which is next.)
There are a lot of people who have a dell or similar laptop that they are not able to use because of a special password chip that can't be cleared by resetting the CMOS. Dell will not give any help to these people without verifying that they are the original and registered owners of these laptops. Their justification is that it is part of their security anti-theft program, and keeps people from stealing their laptops or accessing their data. There are however, several reasons that this is an extremely unrealistic approach to the matter of laptop theft.
CAUTION Do not operate your portable computer for an extended period of time with the base resting directly on your body. With extended operation, heat can potentially build up in the base. Allowing sustained contact with the skin could cause discomfort or, eventually, a burn.
This manual provides instructions for removing and replacing field-replaceable components, assemblies, and subassemblies in your Dell Latitude portable computer. Unless otherwise noted, each procedure in this manual assumes that a part can be replaced by performing the removal procedure in reverse order.
(J) NOTICE If you received a flash BIOS update program diskette or CD with the replacement microprocessor, you must update the BIOS after replacing the microprocessor module. For instructions on updating or reflashing the BIOS, see the Dell Portable Computer BIOS Update Guide.
The Power Schemes tab allows you to select the power scheme (Always On, Home Office Desktop, and Portable Laptop) and power mode settings for your computer. For Windows 2000, the Power Schemes tab allows you to select the battery settings for your computer. The following power scheme settings are available. NOTE With systems running ACPI, select the Portable Laptop setting as the Power Scheme to conserve battery operating time while the system is in standby mode. If the Always On setting is selected, battery operating time may be much shorter when in standby mode.
This guide is intended for anyone who uses a Dell portable computer. It can be used by both first-time and experienced computer users who want to learn about the features of the computer. This guide also provides basic troubleshooting procedures and instructions for using the Dell Diagnostics to test your computer and its components.
In addition to the standard features found in a Dell portable computer, the Dell Latitude XPi CD models include the following new features Figure 1-1. Front View of the Notebook Computer Figure 1-1. Front View of the Notebook Computer Figure 1-2. Back View of the Notebook Computer Figure 1-2. Back View of the Notebook Computer
NOTE To prevent possible damage to the original diagnostics diskette, always use a backup copy of the diagnostics diskette when servicing a user's computer. Dell recommends that users make copies of the Dell Diagnostics Diskette. For instructions, see Before You Start Testing in Chapter 4, Running the Dell Diagnostics, of the Dell Inspiron 3500 Portable Computer Reference and Troubleshooting Guide. Dell Inspiron Portable Computer 3500 Service Manual
Q NOTICE If you received a flash BIOS update program diskette or CD with the replacement microprocessor, you must update the BIOS after replacing the microprocessor module. For instructions on updating or reflashing the BIOS, see the Dell Portable Computer BIOS Update Guide.
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