Re: HP Elitebook 840 G2
when trying to read ID
Current programmer: CH341
ID(9F): FFFFFF(Unknown)
ID(90): FFFF(Unknown)
ID(AB): FF(Unknown)
ID(15): FFFF(Unknown)
When trying to Unprotect Before Erase
Current programmer: CH341
Old SREG: 11111111(0xFF), 11111111(0xFF)
grego123
New Member
Last Activity: 06-02-2021, 06:51 AM
Joined: 09-21-2020
Location: paris
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Re: New Members - please post your introductions here
Hi guys,
Thanks for this forum and community!
I am Grego from France, worked in IT as web developer for about 10 years.
I am interested in fixing computers and phone to avoid buying always new stuff..
As well in open sources softwares!
See you and good luck everyone
Leave a comment:
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Re: HP Elitebook 840 G2
Thanks for the suggestion.
So I removed the battery, plugged the charger and turn on the laptop.
Screen remains black and fan turn at high speed
(same if I put back the battery)
Reading the chip still brings FFFF only
Should I try to erase the BIOS chip and replace by one such as the one post#64 or it is a bad idea?...Leave a comment:
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Re: HP Elitebook 840 G2
Hi guys,
I am currently trying to get the BIOS dump for an Elitebook 840 from a CH341A + SOIC8 clip with AsProgrammer 1.4.1
I have identify 2 chips, a Macronix MX25L12873 and a WINBOND 25Q16DV
I saw in previous messages that the Macronix is the main BIOS chip. Can you confirm?
When I read this one, I obtain a 16Mb file but only FFFFFF in it.
The CMOS battery is still there. Should I remove it?
Any other suggestion? Thanks for you help
GregoLeave a comment:
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Re: HP BIOS unlock tool
Hi guys,
Thanks for proposing this tool and forum!
I am about to start the process for a HP EliteBook 840
Quick question: is there a Linux version of the HPUnlocker?
Thanks
GregoLeave a comment:
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