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Hp 6470b bios hdd passwrod how to#
Hp 6470b bios hdd passwrod password#
Hp 6470b bios hdd passwrod download#

Now take the tweezers or some small gripper so that you can take of the BIOS chip. So turn the heat gun on 400 degrees celcius and put the air flow as high as possible. We always set the temperature on 480 degrees so the chip will be detached very quick but this can also be dangerous when you don't know exactly what you are doing. Start with a small nozzle on you hot air gun and put the temperature on 400 degrees celcius. This is the easiest way to desolder the chip but be careful because there is a possibility you burn the chip which make it unusable. When you get the feeling for it you will be ready to remove the chip from the motherboard. This can be a bit tricky at first so I recommend starting with some chips from an old unused electronics board.

Remove the BIOS chip from the motherboardAs soon as you have located the chip, removed the BIOS battery, you can start removing the chip itself. This is a very important step and I know that this might be forgotten later on. Whenever you locate the BIOS chip, remove the battery as soon as possible. If you are unable to locate the BIOS chip, you have to disassemble the laptop bit by bit until you have sufficient room to desolder it.

This is a HP ProBook 650 G1 where only the bottom case has to be removed to get to the BIOS chip. The reason you need to locate the BIOS chip is so that you don't need to disassemble the entire laptop. The BIOS chip itself is always located near the battery. A good place to start is to see if you can find the BIOS battery. On every motherboard the BIOS chip is located in a different place. Solder the chip back on the motherboardĪre you excited to learn something about a laptop BIOS? Let's get started!.

Hp 6470b bios hdd passwrod password#

Use the HP BIOS unlock tool to remove the password.Read the chip with the USB ISP programmer.Remove the BIOS chip from the motherboard.Amtech flux is the best flux on the market, although pretty expensive. Although soldering can be done without flux, it is recommended to use.Some tweazers to take of the chip itself.I know there are much better microscopes but they are often very expensive and this one does do the job just fine. A microscope, the one we use is a Hayear microscope.

Hp 6470b bios hdd passwrod download#

A program to remove the BIOS password which you can freely download here.

You can use a SOIC 8 clip in some cases but we stopped using it because it's not reliable.

Second you need a desoldering station to remove the chip from the motherboard.

For HP we use the EZP2019 which works on all the HP models.

The most important tool is a USB ISP programmer.

Tools you need to remove a HP BIOS password If you have a first, second or older generation, please try a tool developed by Mazzif before you use this method. As far as I experienced, this method works for every HP laptop up to the 7th generation and maybe even higher. Now for those of you that want to proceed, let's get started. We do not take any responsibility if this method does not work or in the worst case, destroys your laptop. Only try this if you have no other choice or if you like to know more about the workings of a computer.

Hp 6470b bios hdd passwrod how to#

How to remove BIOS passwords from HP EliteBook and HP ProBook laptops?