Hp elitebook 840 g5 bios password

[jiten1885]

Thank you SMDFlea . Now I know the rules. and Thank you lapfix. I will try it and get back to you.

[Bigherc07]

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, or is the EC chip the only way to remove the password? Any advice would be greatly appreciated!

[hoaca388]

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, or is the EC chip the only way to remove the password? Any advice would be greatly appreciated!

Post main bios file.

[SMDFlea]

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, or is the EC chip the only way to remove the password? Any advice would be greatly appreciated!

Solder wires to the pads https://www.badcaps.net/forum/troubl...58#post3223258

[Bigherc07]

Post main bios file.

Here is the main bios file. thank you in advance.

[Bigherc07]

Post main bios file.

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?

[hoaca388]

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?

Post the serial number on the back of the laptop.

[Bigherc07]

Post the serial number on the back of the laptop.

SN= 5CG8212H7V

[hoaca388]

SN= 5CG8212H7V

Unlocked

[hoaca388]

SN= 5CG8212H7V

Description : HP EliteBook 840 G5
Serial Number : 5CG8212H7V
SKU : 3TU06PA#ABG
Buil ID=17WWCSAT601#SABG#DABG
FEATUREBYTE_3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqgdhKhk.h4

[Bigherc07]

Description : HP EliteBook 840 G5
Serial Number : 5CG8212H7V
SKU : 3TU06PA#ABG
Buil ID=17WWCSAT601#SABG#DABG
FEATUREBYTE_3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqgdhKhk.h4

thank you a lot. I really appreciate it. should I modify these before flashing your file?

[Bigherc07]

Unlocked

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.

[hoaca388]

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.

First boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.

[Bigherc07]

First boot press f10 apply factory defaults and restart, 2nd boot reset security settings to defaults and exit.

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.

[hoaca388]

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.

So there is still EC chip, look for chips with number 128 or 256, for example: 25Q256VDS..

[Bigherc07]

So there is still EC chip, look for chips with number 128 or 256, for example: 25Q256VDS..

I can't read the EC chip because I don't have an adapter for it. It's the ISSI " ic25lp128 "

[hoaca388]

I can't read the EC chip because I don't have an adapter for it. It's the ISSI " ic25lp128 "

https://vi.aliexpress.com/item/10050...740007078757_1

[Bigherc07]

https://vi.aliexpress.com/item/10050...740007078757_1

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.

[hoaca388]

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.

Only bios and EC, your computer can't be opened with bios then EC is the only way. Or you can solder wires to the extra pins to see.

[Bigherc07]

Solder wires to the pads https://www.badcaps.net/forum/troubl...58#post3223258

I solder wires to these pads. right?