Re: HP Elitebook 820 G1 - Still BIOS password after flash
Hi, no not even a sign of life on the screen.
The fan starts to spin and caps is blinking.
Power led, thats all....
silversweden
New Member
Last Activity: 03-12-2017, 06:33 AM
Joined: 01-16-2013
Location: stockholm
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
Well i took a W25Q128 from another defect board i have.
So flashing both U365 and U366 was done using the files from "rioreno".
Now the computer wont even boot and i dont know if its the wrong programming to the chips or if i could not resolder the smd resistor/diode.
(i guess its a 0402, really small)
Thank you all for the help i really wanted this to work.
Even bought a new screen for it since the old one was broken :/Last edited by silversweden; 03-11-2017, 11:02 AM.Leave a comment:
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
U365: W25Q128 = 16MB
U366: W25Q16 = 2MB
U365: Detected as "M25P20S" by the CH341A software.
I suspect its fried since i accidently put it in the wrong direction in the programmer...There was a green dot in the corner which i was thinking was the direction mark...
But its marked 25Q12...cant read it completely because of the green dot...
Now i need to scavenge a W25Q128 chip, i guess i just order one
On top of that when i cleaned of the flux...Last edited by silversweden; 03-11-2017, 08:57 AM.Leave a comment:
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
Here is the main board. The bios is the one upper mid left of the copper ring. There is a chip with same package just below the battery connector.
But even if i identify the ec i dont have a dump for that :/
What can i do?...Leave a comment:
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
Whats the ec eprom?
Its sad if i have to throw away this laptop just because a stupid password
...
Leave a comment:
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
I reflashed the Winbond chip using the HP Elitebook 820 G1 file.
Flashing was no problem but it still tells me:
"USER ID: BIOS Administrator
Enter Password"
I cant get in
Leave a comment:
-
Re: HP Elitebook 820 G1 - Still BIOS password after flash
Great thanks to all of you i will try this tonight!
Just have to desolder the damn chip again...good for me that I'm quite skilled at soldering
How could i believe that it would work to download the bios file from HPs website and then program them into the chip...
I will report back after i have tested this new file.
Do i have to reprogram some ID/Serial/UUID numbers and stuff i have seen people talk about?...Last edited by silversweden; 03-10-2017, 12:17 PM.Leave a comment:
-
HP Elitebook 820 G1 - Still BIOS password after flash
Hi,
The problem is that the BIOS is password protected and i have been reading a lot of threads about this.
I bought the "USB Programmer CH341A Series Burner Chip 24 EEPROM BIOS Writer 25 SPI Flash". (had to wait about a month to get it...)
The BIOS i got from HP.
Since im good at electronics and soldering i desoldered the BIOS chip from the mother board without any problem.
Then i reprogrammed the new BIOS and resoldered the chip.
...Leave a comment:
No activity results to display
Leave a comment: