How can I reset BIOS password?

Question

HP EliteBook 850 G2

Released in 2015, the HP EliteBook 850 G2 is an update to the 850 G1, featuring newer processors and an optional touchscreen. Repair guides and detailed information can be found here.

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Darrell Haslam @haslamit

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投稿日: 2020年7月30日

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How can I reset BIOS password?

I have purchased a second-hand laptop and found the BIOS is password protected?

Is there a way to reset/remove BIOS password on this particular laptop?

I have tried removing CMOS battery but this has no effect (I believe BIOS password is held in NVRAM on this model).

HP say the only way to remove the BIOS password is to replace the motherboard which I am not willing to do as apart from being able to access the BIOS, the laptop is running fine.

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Take it back for a refund.

mike さんによる2020年7月31日

remove bios password hp elitebook 850 g2

meassophanna105 さんによる2022年2月8日

Not sure why TB rep claims it costs more than the laptop to do this, In reality, it costs about as much as lunch. Get this off amazon HiLetgo CH341A STC Flash 24 25 EEPROM BIOS Writer USB Programmer, it's 7 dollars. Then Email me or reply back here and I will instruct you how to dump the BIOS, and I can tech you to remove the password or I can do it for you. It's really not that hard. I've done hundreds of this very model.

Wayne Leon さんによる2026年3月29日

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Сергей Решетняк @sergeyreshe3494

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投稿日: 2020年11月9日

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Replace the BIOS chip, or download a dump of the BIOS chip and delete the password. I did this on a laptop HP EliteBook 820 G3.

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Not sure why TB rep claims it costs more than the laptop to do this, In reality, it costs about as much as lunch. Get this off amazon HiLetgo CH341A STC Flash 24 25 EEPROM BIOS Writer USB Programmer, it's 7 dollars. Then Email me or reply back here and I will instruct you how to dump the BIOS, and I can tech you to remove the password or I can do it for you. It's really not that hard. I've done hundreds of this very model. — Wayne Leon

TB_rep @tbrep 評価: 13 2 1 · Answer 1 · 2021-04-29T05:48:43-07:00

TB_rep @tbrep

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投稿日: 2021年4月29日

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You can't…

You need tools that cost more then the laptop to rewrite BIOs and then you need software versions match for firmware and INtel ME or it won's boot plus the DMI tool.

Long story short, forget about it! Return or use as is…

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Just purchase a bios chip off ebay, and replace it, but you should have some soldier experience.

Don Le さんによる2026年2月24日

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score 0 · Answer 2 · 2020-07-30T10:09:10-07:00

tcagle53 @professorc

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Professor C's E-repair and Upgrade Service

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投稿日: 2020年7月30日

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Just read this and it gave me a glimpse of the future of bios support from computer manufacturers. Looked pretty depressing too!

HP-EliteBook-840-G2-bios-password-reset

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Thanks for the reply (and the link) but HP say they will only supply a SCM.bin file for machines that are still under warranty. They say the only option after this is to replace the system board which seems a bit OTT as the system does not have any other fault.

Darrell Haslam さんによる2020年7月30日

What is the serial number of the unit?

tcagle53 さんによる2020年8月1日

S/n: is 5CG6195QF3

Darrell Haslam さんによる2020年8月1日

Hmm, I tried to see if HP's website had anything to offer based on that serial number and no luck. I think you may have bought a pig in a poke. Have you any luck contacting the seller?

tcagle53 さんによる2020年8月3日

My Elitebook is still under warranty and they will not give me the scm.bin

Amy1329 さんによる2022年1月8日

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