Only boots to the HP logo. cant get to set up or bios. status light blinks for a few seconds then nothing but the logo
You could try the ram, i had same problem , replaced ram and it was fine. might work
SOURCE: How to reset BIOS password
If you really wanted to reset the bios, you have to disassemble your laptop and look for the battery. It is a small circle usually clip with a small metal and soldered. Cmos battery located on the rear of your motherboard. Get the battery using soldering iron or gun, put it back again the battery after 10 seconds. These process will erase all the save information from your cmos or bios. Assemble again and test your laptop. Have a good day!
SOURCE: how to reset the HP
Go to HP's site, look to see if there is any documentation on taking the laptop apart, remove the battery, take it apart, and remove the watch battery found within. Keep it out for a few minutes, put it back, reassemble, and you're good to go.
SOURCE: How do i reset bios password in hp probook 4520s
As a laptop repair tech I often get HP notebooks with an unknown bios password and I use http://www.unlockbiosrecovery.com/Unlock_HP-Compaq_HDD.php to get the bios master password for that HP notebook. They make it easy showing you what information they need to calculate your bios master password which deletes any current bios password. I have used them on a regular basis now and they have worked perfectly, if I have a question I just give them a call and a real human answers that knows all about unlocking bios passwords. Only $20 for the bios master password and they guarantee it to work. Only site to order your bios master password from, no scams and real people with real solutions. They have saved me a lot of time and money.
SOURCE: i need to reset bios administrator password of my hp probook 5310m
If you know the password you can enter the BIOS settings to change the password.. but i stress that you WILL need the current password to do so.
If you do NOT know the current password, you will have to remove the Lithium ION 1.5v battery from the computer, which will require a miniature screw-driver. If you remove the battery for about 30 seconds, the BIOS settings will be cleared to default.
In order to do this I suggest you look up a guide on the manufacturer's website and find out where exactly the battery is housed. It is generally very easy to access the battery, so don't be too scared off by all of the steps provided.
If you are a newer of computer, you can use the bios/cmos password recovery tool from http://www.biospasswordrecovery.com
Wish you luck!
SOURCE: HP ProBook 4530s don't start. Lights blinking!!!
Sub out the ram one at a time, if luck is there unit will start, second option is remove the main battery often loads the system down.
The 6930p uses the HP Sparekey method of password recovery. The owner sets a password and then completes hints to retrieve it in case it is lost.
They can also register the password with HP and upon providing proper proof of ownership, HP will provide the password the owner registered with HP.
So, if a person can't remember the password or the password hints, they can get it from HP.
If the password wasn't registered, or you are not the original owner, there is nothing you can do to retrieve the password, or clear it.
You will need a new motherboard, or you can strip the notebook for parts (except for the motherboard, which is useless as it is).
Last but not least you can install the Operating System again and this will by pass the Windows password. That would be my option instead of using the computer for a door jam or throwing it out. Just get a System restore disk or another Operating System disk upgrade to Win 7 good software for a laptop.
John
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Ive replaced memory and cpu, no change. Ive tried with battery and just power cord no change.
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