Dell 7300 locked bios

[Blaze Tech]

Hi i need to unlock bios for Dell latitude 7300 if is posible i need clear bios bicose i have master password thnx
Service Tag :17FY633
Model Board :EDC30 LA-G861P REV:1.

TRY

[lint4u]

Pls help to unlock Dell 7300 8FC8
Service Tag : HMXS1Z2

Tq.

[rex98]

Pls help to unlock Dell 7300 8FC8
Service Tag : HMXS1Z2

Tq.

1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode

[lint4u]

1st boot, press F2, write service tag, disable Absolute, save (Apply changes), restart. 2nd boot press Alt+F to exit manufacturing mode

Thank you Sir

It's working

[don166]

Help please unlocking Dell Latitude 7300 BIOS (ST 5T15H53, MOBO LA-G871P) with 8FC8 lock. Dump attached. Thank you.

[sancheti81]

Help please unlocking Dell Latitude 7300 BIOS (ST 5T15H53, MOBO LA-G871P) with 8FC8 lock. Dump attached. Thank you.

try

[don166]

Worked - thank you.

[sebastiannielsen]

Dell Latitude 7300.

Tried to unlock bios using the 8fc8 patch, but didn't work. Reprogramming the original bios doesn't work either.

using CH341a with NeoProgrammer 2.2.0.10 which identified the bios chip as 25Q256 but quess 25B256 and 25Q256 is the same thing when it comes to programming.
Reading BIOS was done by read + successfull verify, so the content should be exactly whats on-chip.

The computer immediately turns on when attaching DC power. Then it just loops with black screen, turns itself off, and then on again after like 30 seconds, and does the same again.
Also tried crisis recovery with the original BIOS inside chip without luck.

Service tag: 6YYHN73 - Express: 15174474159

BOARD ID:
COPYRIGHT 2019
ALL RIGHT RESERVED
REV:A00
PWB P/N:M8XW5
jdimm2

BIOS CHIP (UC5):
GigaDevice
AJ2017
25B256DYIG
UAF186

Original bin and patched bin attached to thread. (the LRT_Unlock is the patched one, the LOCKED_DELL.bin is the locked one)

[Markus1741]

My assessment of your notebook I think your original file is fine.
I guess your patch was made using the method search in HxD Editor for 010000 and then from offset 0045000 with a long of 4000 to fill everything with FF.
That's not something we like to see here. It doesn't have to work.
Here everyone will only exchange four bytes for you and the notebook will start after several starts in manufacturing mode (patience is the magic word) and the CMOS will also be disconnected.
Just try this new patch.
Please also be patient, the start up to the Dell logo can take some time.

[sebastiannielsen]

My assessment of your notebook I think your original file is fine.

Now to the results.
flashed in the file and verified the flash went good. worked perfectly, went into FACTORY MODE.
but now to the odd thing:

While in factory mode, and entering the service tag, the computer dies randomly before I got to save the service tag, it just rebooted in the middle of entering it.
Tried again, went into factory mode, started entering service tag but it then died randomly again. (both times on DC power).

Now it just turns on, fans on full speed, caps lock LED on.
no beeps.
Display test (D key) works.

Tried reflashing the file again (I could see that the file does not match anymore, so the computer writes something to the BIOS).

Same result.

Verifying the BIOS chip shows that the content is again changed, so apparently it can boot the bootloader for the BIOS chip.


I guess there is some hardware fault on the computer, so any ideas what it could be?

Here is how the computer behaves:
On DC only: Computer reboots every like 30 seconds, fans full speed, caps lock LED on, screen black.
On battery only: Computer is stable, but screen is black all the time. Have had it on for like 15 minutes.
On DC + Battery - same as Battery only.

Tried both with BIOS battery attached and detached.

Any ideas what could be the problem?

[reamon]

Hi, My laptop has bios password. BXSGL33-8FC8
Dell Latitude 7300
S/T: BXSGL33
Here is bios dump. Please unlock it.
Thanks,
Attach

[Blaze Tech]

Hi, My laptop has bios password. BXSGL33-8FC8
Dell Latitude 7300
S/T: BXSGL33
Here is bios dump. Please unlock it.
Thanks,
Attach

try

[reamon]

try

Worked - thank you

[don166]

Need help unlocking two Dell 7300 laptops with 8FC8 locks. STs J30YP13 and CJ9NQ13; MOBOs LA-G861P. Dumps attached. Thank you.

[hoaca388]

Need help unlocking two Dell 7300 laptops with 8FC8 locks. STs J30YP13 and CJ9NQ13; MOBOs LA-G861P. Dumps attached. Thank you.

Unlocked

[don166]

Thank you once again for the help.

[vuquanghoanh]

Hi,
Could you help me to unlock the admin password, please?

Model : Dell Latitude 7300
Motherboard : EDC30 LA-G861P Rev: 1.0 (A00)
S/T: B73QF13
Thank you.

[minhdigital]

Hi,
Could you help me to unlock the admin password, please?

Model : Dell Latitude 7300
Motherboard : EDC30 LA-G861P Rev: 1.0 (A00)
S/T: B73QF13
Thank you.

Send to you

[hoaca388]

Hi,
Could you help me to unlock the admin password, please?

Model : Dell Latitude 7300
Motherboard : EDC30 LA-G861P Rev: 1.0 (A00)
S/T: B73QF13
Thank you.

AAA

[vuquanghoanh]

AAA

Working well. Thank you so much
Hoạt động tốt anh ạ.