RCUnlocker

[trili]

Can someone please help me unlock HP EliteBook 840 G2 CNU41591RL

[trili]

What model is this mysterious machine. Post full laptop model and serial number,as per the rules !

RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...before-posting .

Sorry, It is HP EliteBook 840 G2 CNU41591RL

[caprigtx]

Unlocked

Its working , Thank you.

[hoaca388]

Hello , i have a Hp Elitebook 850 G7 SN CG116722N with bios pass.
I tryed to unloch these with Rc Unlocker and hp unlocker 1.0
Both times pass still exist. is there a another way to unlock this.
Off is here some one who can help me ?

The original files and the unlocked files included.

Unlocked

[caprigtx]

Hello , i have a Hp Elitebook 850 G7 SN CG116722N with bios pass.
I tryed to unloch these with Rc Unlocker and hp unlocker 1.0
Both times pass still exist. is there a another way to unlock this.
Off is here some one who can help me ?

The original files and the unlocked files included.

[SMDFlea]

i unlocked my bios and flashed it but the password is still there?

What model is this mysterious machine. Post full laptop model and serial number,as per the rules !

RULES UPDATE for BIOS requests/offers AVOID BANNING, READ BEFORE POSTING
https://www.badcaps.net/forum/troubl...ore-posting .

[Palimpu]

Thank you for your feedback.

I have made the changes starting from address 37000. However, it appears that it is somehow being written back from a RAM. Presumably, this is because I did not disconnect the CMOS battery. I left it installed because I'm concerned it might erase the TPM.

[Maanu]

Hey, thank you guys for the software.
Got a probook 650 g2 unlocked with it, else it would have been ewaste which i cant accept

Its a great forum i think i will stay here!

[trili]

i unlocked my bios and flashed it but the password is still there?

[Paul.Junge2020]

Hello. It`s working for HP with processors intel 10,11,12 gen? Like HP 850 g8

[RethoricalCheese]

You need to modify EC bios, not main bios. Address 37000.

[Palimpu]

hello guys.

i have some problems with
model: 640 G8 with 32MB ROM

i have tried to overwrite the specified sectors. after each boot it resets the chip to the original value.... Is there another version of RCUnlocker for 32MB or how can I find the right sectors?

thanks for your help!

[psyjamm]

Come on guys! What wrong with you? It's simply to find on youtube how to use this utility! Put your bios dump to folder with rcunlocker.exe and than just drag your bin file to the program shortcut

[fixit007]

Re: RCUnlocker

Btw, I highly recommend the very simple wire-less SOIC clips that go for $2 on eBay from China.

One can simply attached wires to the clip, and the other ends to Raspberry Pi. I had 20cm wires. To create some room for wires to be attached, I bent clip's pins into the middle and out in a staggered way.

I saw some pictures out there where the clip wires go to a break out board first, and then have to get connected to Raspberry. That's an extra step, and tons of possible confusion.

See pictures.

[Schrauber2023]

Re: RCUnlocker

Thanks for sharing the RCUnlocker

[fixit007]

Re: RCUnlocker

Unlocked 8470p, all good! Great tool!

Replaced CMOS battery while at at - why does HP wrap it into plastic ... Slightly shorted a good 2032 Duracell while attaching wires.

The program gives an error at the end, but that does not seem to impact anything, and the unlocked bios is produced OK.

[RethoricalCheese]

Re: RCUnlocker

By soldering wires, it might work

[Catmouse]

Re: RCUnlocker

So there's basically no way without removing it?

[RethoricalCheese]

Re: RCUnlocker

That model has wson8 chip so you would either need a hot air station or solder very thin wires directly between chip and programmer.

In case of soic8, it's pretty much always possible to do without it using a soic8 clip.

[Catmouse]

Re: RCUnlocker

Yes, it does.

Thank you!
So I still need to manage to get a dump of the bios to use it and put that .bin file into the same folder as the .exe file of your unlocker?

Trying to find out what I need to buy without having to remove the chip from the mainboard as I've seen people managed to do it without removing the chip.

Thanks!