HP EliteBook 820 G1 Bios

[Genova]

Re: Hp 820 g1

Hi,
Nobody can help on this ?

[peste]

Re: Hp 820 g1

Hi,
Nobody can help on this ?

remove the bios chip before reading from the motherboard and solder on the programmer if you do not have an adapter ..maybe the bios chip is defective ..

[Genova]

Re: Hp 820 g1

already desoldering and reprogramming same problem? Even with new chip same problem

[lapfix]

Re: Hp 820 g1

Maybe you destroy a small cap/resistor near bios pads , try to verify at another motherboard or search HD picture to confirm.

[Lornet]

Re: HP EliteBook 820 G1 Bios

Hi everyone,
Thank you first for all the informations and services offered on the site.
I have to unlock a HP 820 G1 (bios locked). It would seem, to make a correct bios dump, that it is necessary, on this model, either desolder the eeprom, or solder wires to it (and dump for only the eeprom, not eeprom + EC). Am I right ? I do not know these technics: would you have a solution that would only require a simple clip? Do you need to use any particular software and, if so, which one ?
Thanks for rour reply and best regards.

[peste]

Re: HP EliteBook 820 G1 Bios

Hi everyone,
Thank you first for all the informations and services offered on the site.
I have to unlock a HP 820 G1 (bios locked). It would seem, to make a correct bios dump, that it is necessary, on this model, either desolder the eeprom, or solder wires to it (and dump for only the eeprom, not eeprom + EC). Am I right ? I do not know these technics: would you have a solution that would only require a simple clip? Do you need to use any particular software and, if so, which one ?
Thanks for rour reply and best regards.

you will need an SPI programmer.

https://www.youtube.com/watch?v=DWWigscuQDY

[Lornet]

Re: HP EliteBook 820 G1 Bios

you will need an SPI programmer.

https://www.youtube.com/watch?v=DWWigscuQDY

Yes, of course. But I want to know if, for unlocking a bios password, I must make dump(s) of only the eeprom or eeprom AND EC ? And about making the bios dump, must I desoldier it (never do it before) or can I use a clip + ch341A + flashrom or ch341a software or another programmer software (which one in this case) ?
Thanks for your reply and best regards

[peste]

Re: HP EliteBook 820 G1 Bios

Yes, of course. But I want to know if, for unlocking a bios password, I must make dump(s) of only the eeprom or eeprom AND EC ? And about making the bios dump, must I desoldier it (never do it before) or can I use a clip + ch341A + flashrom or ch341a software or another programmer software (which one in this case) ?
Thanks for your reply and best regards

you only need to remove the contents from the bios chip, it is good to remove the chip from the motherboard, and solder it on the programmer if you have ch341A,
and you do not have an adapter for bios chips ..
you can soder wires between the programmer and the chip bios on the motherboard,
if you can't remove it..do not use the clip because you will have errors..
don't forget to make a bios copy before writing the bios chip..if you have CH341A use one of these two programs ..

https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

[kamalkharbanda]

Re: HP EliteBook 820 G1 Bios

Hi, I have 820 G1 [2pcs] laptops. Both laptops had delay display problem due to bad me region. I flashed bios with clean me . Now display comes in 2-3 seconds. But shows error
Warning Machine is not in committed State.
Can anybody help me to get rid of this error ??
Thanks in Advance

[peste]

Re: HP EliteBook 820 G1 Bios

Hi, I have 820 G1 [2pcs] laptops. Both laptops had delay display problem due to bad me region. I flashed bios with clean me . Now display comes in 2-3 seconds. But shows error
Warning Machine is not in committed State.
Can anybody help me to get rid of this error ??
Thanks in Advance

try this
https://www.youtube.com/watch?v=DwcWzGCoj9A

[mberbouch]

Re: HP 820-g1 bios flashed bootup late

Try this 16mb main bios with clean me.

Thank you very much.

[recep1982]

Re: HP EliteBook 820 G1 Bios

pls help me bios password clear

[SMDFlea]

Re: HP EliteBook 820 G1 Bios

pls help me bios password clear

Doesn`t RCUnlocker or HPUnlocker work ? https://www.badcaps.net/forum/showpo...42&postcount=4

[recep1982]

Re: Hp 820 g1

thank you frend Haşere Bro

[alkuentrus]

HP 820 G1 Bios needed

Dear members, I need a working bin for model HP820 G1 (25Q128LF).
Serial: CNU421BLJD
Product: D7V73AV

Its not a problem of password. Its a bios corruption problem.

Can I use a bios from other models like 820 G2?

Best regards
David Inácio

[Vesko356]

Re: HP 820 G1 Bios needed

Dear members, I need a working bin for model HP820 G1 (25Q128LF).
Serial: CNU421BLJD
Product: D7V73AV

Its not a problem of password. Its a bios corruption problem.

Can I use a bios from other models like 820 G2?

Best regards
David Inácio

Upload your dump here.

Can I use a bios from other models like 820 G2?

No.

.

[alkuentrus]

Re: HP EliteBook 820 G1 Bios

Here it goes.

[alkuentrus]

Re: HP EliteBook 820 G1 Bios

I have been studying this and I wonder if maybe it as ME problem? Computer doesn't boot at all.

[alkuentrus]

Re: HP EliteBook 820 G1 Bios

Any ideas?

[alkuentrus]

Re: HP EliteBook 820 G1 Bios

if i pair these two i got online, should it work?