Hello everyone
I have an HP Elitebook 840 G5
problem : after laptop freeze and force shutdown, when powering on there's no display and caps/num lk blinking 5 times and wireless light orange then the fan speed increases until full speed and it stays like that.
what I've done so far : after pulling a dumb from the bios chip, ME seems to be corrupted as ME analyzer found an error. I managed to clean ME myself by following the extensive guide on winraid but after soldering the bios, power light keeps blinking white and orange. I also tried with known working older bios dump that...
Bigherc07
Member
Last Activity: 12-04-2025, 07:21 AM
Joined: 12-16-2024
Location: Paris
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after restoring my original bios ( your unlocked bios didn't work ), the laptop won't turn on. power light blinks 6 times and caps lock light keeps blinking. pressing the power on button doesn't seem to do anything....Leave a comment:
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Thank you! Could I also desolder the chip and solder wires directly to its pins?...Leave a comment:
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I solder wires to these pads. right?...
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Mine is wson8 6*5 and since I only have an adapter for wson8 6*8. I was asking if there is another way to unlock my bios....Leave a comment:
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I can't read the EC chip because I don't have an adapter for it. It's the ISSI " ic25lp128 "...Leave a comment:
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Before I could enter the BIOS to apply the default settings, an error appeared stating that there was a mismatch and that information had been copied from the embedded memory. After rebooting, the BIOS is still locked....Leave a comment:
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On the first boot, it showed a mismatch error and mentioned that it copied information from the embedded controller. After restarting, the BIOS is still locked....Leave a comment:
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thank you a lot. I really appreciate it. should I modify these before flashing your file?...Leave a comment:
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SN= 5CG8212H7V...Leave a comment:
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Should I post the motherboard’s serial number and model number? The serial number on the back of the laptop doesn’t match the one shown in HP System Information—I think the previous owner might have replaced the back cover. Should I reassemble the laptop and send you the serial number from HP System Information instead?...Leave a comment:
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Here is the main bios file. thank you in advance....Leave a comment:
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I've been preparing to unlock the BIOS password on my EliteBook 840 G5 for about a month. I got a T48 programmer along with a WSON8 8x6 adapter, but after removing the motherboard, I was surprised to find that the EC chip was actually in a WSON8 5x6 package.
From what I've read on this forum, only the 16MB EC chip is compatible with RCUnlocker, and since I don't have an adapter for this chip, I'm stuck. Ordering a WSON8 5x6 adapter from AliExpress would mean waiting at least 20 days, so I was wondering—do I have any other options?
Can I unlock the main BIOS instead,...Leave a comment:
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Hello everyone. I'm happy to join such an awesome community and look forward to learning from you all.Leave a comment:
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