Dell Precision 5550 password help please

[SMDFlea]

I'm trying to remove bios password.
Board: LA-J191P
model: Dell precision 5550
Thanks.

Thread merged. Please post the service tag, read the rules -> https://www.badcaps.net/forum/troubl...before-posting

[Muhammad4848]

I'm trying to remove bios password.
Due to poor soldering skill, i used a clip to read and write the chip. after patched bios file and flushed it into chip, my laptop won't start and boot loop with max fan speed when trying to start( once power cable plugs in, it show dell logo one time. After that only keyboard led turn on and off and nothing on screen). The problem remain same even i flushed the original backup bios.
I think the possible reason is when i first read, the connection isn't good, so all my bios file are corrupted. If it's that case, is it possible to fix it? If not, maybe it's time to buy a new laptop LOL.
Programmer: CH341A
Board: LA-J191P
model: Dell precision 5550
Thanks.

Service tag: 5ZNYZD3-8FC8

[Muhammad4848]

Did you make sure to wait at least 2-3 minutes for motherboard to post ? in cases of BIOS removal or reflash motherboard will need to do fresh post and druing this fans will work at full speed

yeah longer than that, but no luck.

[Muhammad4848]

I'm trying to remove bios password.
Due to poor soldering skill, i used a clip to read and write the chip. after patched bios file and flushed it into chip, my laptop won't start and boot loop with max fan speed when trying to start( once power cable plugs in, it show dell logo one time. After that only keyboard led turn on and off and nothing on screen). The problem remain same even i flushed the original backup bios.
I think the possible reason is when i first read, the connection isn't good, so all my bios file are corrupted. If it's that case, is it possible to fix it? If not, maybe it's time to buy a new laptop LOL.
Programmer: CH341A
Board: LA-J191P
model: Dell precision 5550
Thanks.

I searched schematic and found this. Does this mean it can't be write without desoldering? but the programmer says write successfully, it's really confuse me.

[deviantcode]

I need to unlock this bios, it is locked with the dell security thing and requires password. Here is a dump of the original.
Dell Precision 5550
FDQ50/FDC55 LA-j191P
Rev 1.0
GD25Q256 [3.3V] - Bios chip

[peste]

post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

[peste]

I need to unlock this bios, it is locked with the dell security thing and requires password. Here is a dump of the original.
Dell Precision 5550
FDQ50/FDC55 LA-j191P
Rev 1.0
GD25Q256 [3.3V] - Bios chip

post the bios here, not on other sites..
post S/T,post the contents of the bios chip even if it is corrupted.. etc.

[deviantcode]

post the bios here, not on other sites..
post S/T,post the contents of the bios chip even if it is corrupted.. etc.

heres the file

[SMDFlea]

Read the dell password topic, you might be able to unlock it yourself ,depending on the suffix - https://www.badcaps.net/forum/troubl...23#post1622423

[deviantcode]

heres the file

its not the right suffix

[SMDFlea]

its not the right suffix

Well what is the suffix ?

[Ahmed abdelwahed]

Can you help me fix the BIOS file of a Dell Precision 5550 laptop that is stuck on the logo and does not complete?

[hoaca388]

Can you help me fix the BIOS file of a Dell Precision 5550 laptop that is stuck on the logo and does not complete?

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.
• Name your thread with make, full model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is, be specific - black screen, no boot, running slow, password. Do NOT post "clean me", "clear bios", "clean bios", "fix bios", "bios need" or other such terms

[Ahmed abdelwahed]

"Can you help me with a Dell Precision 5550 laptop that's stuck on the Dell logo and won't boot further? Model: Dell Precision 5550
Board: LA-J191P
Revision: 1.0 (A00)
Date: 31-1-2020"

[SMDFlea]

"Can you help me with a Dell Precision 5550 laptop that's stuck on the Dell logo and won't boot further? Model: Dell Precision 5550
Board: LA-J191P
Revision: 1.0 (A00)
Date: 31-1-2020"

Please Type the laptop service tag

read the forum rules..https://www.badcaps.net/forum/troubl...before-posting

[Ahmed abdelwahed]

"Can you help me with a Dell Precision 5550 laptop that's stuck on the Dell logo and won't boot further? Model: Dell Precision 5550
Board: LA-J191P
Revision: 1.0 (A00)
Date: 31-1-2020"
Service tag: C9PHN73

[danito]

"Can you help me with a Dell Precision 5550 laptop that's stuck on the Dell logo and won't boot further? Model: Dell Precision 5550
Board: LA-J191P
Revision: 1.0 (A00)
Date: 31-1-2020"
Service tag: C9PHN73

try

[dnxxy]

Hi guys
I have few questions my dell precision 5550 got BIOS admin password protected. Assuming I upload my bios dump and flash using the one you made, the flash won't be go thru right since the bios has admin password lock. I will post my bios dump later

Service tag: 402RZD3
Serial: 55M0BC3
AssetTag: GIS-A-S-001409

Thanjs

[lapfix]

Hi guys
I have few questions my dell precision 5550 got BIOS admin password protected. Assuming I upload my bios dump and flash using the one you made, the flash won't be go thru right since the bios has admin password lock. I will post my bios dump later

Service tag: 402RZD3
Serial: 55M0BC3
AssetTag: GIS-A-S-001409

Thanjs

upload your bios

[dnxxy]

I'm newbie when doing flashing stuff. Do you have tutorial how can I dump my bios. I tried using Universal Bios Utility but cant get the installer workin

Thanks

[hoaca388]

I'm newbie when doing flashing stuff. Do you have tutorial how can I dump my bios. I tried using Universal Bios Utility but cant get the installer workin
Thanks

https://www.youtube.com/results?sear...41a+flash+bios