Dell Latitude 7400 2-in-1 bios with absolute persistence lock

[berrylinx]

Dell Latitude 7400 2-in-1 bios with absolute persistence lock, Service Tag: HRPJN53
Can someone please assist with this please. I've provided two dump files using Xgeco T48, one is the read and default saved and other is the Flash saved option, they're labeled according.
Thank You.

[SMDFlea]

try the patcher script https://www.badcaps.net/forum/troubl...79#post3633379

[berrylinx]

When I run absolutely.mps I get this error in the pic below. Yes, bios file has been put in same folder and renamed locked.bin

[SMDFlea]

When I run absolutely.mps I get this error in the pic below. Yes, bios file has been put in same folder and renamed locked.bin

try this bios

[berrylinx]

try this bios

Ok let me test and get back to you in a few hours

[berrylinx]

This worked perfectly.
On initial boot it restarted several times which is normal, then it booted straight to bios setup and i permanently disabled Absolute Persistence.
i then reloaded Windows and everything seems to be working perfectly, I'm actually responding to you from the same laptop.

Question #1: I have 6 more of these laptops coming in with the same issue, can I use this same bios file you provided to fix those as well?
Question #2 Can you direct me to some information or software so that i can learn do these modifications myself?

Anyways i really appreciate the help and the prompt responses.

[LBTT1121]

This worked perfectly.
On initial boot it restarted several times which is normal, then it booted straight to bios setup and i permanently disabled Absolute Persistence.
i then reloaded Windows and everything seems to be working perfectly, I'm actually responding to you from the same laptop.

Question #1: I have 6 more of these laptops coming in with the same issue, can I use this same bios file you provided to fix those as well?
Question #2 Can you direct me to some information or software so that i can learn do these modifications myself?

Anyways i really appreciate the help and the prompt responses.

used for 6 laptop , file clearME

[berrylinx]

used for 6 laptop , file clearME

Hey so I haven't received the other laptops to test that last file you sent as yet , but as i get to test i will certainly post here. In the mean while i have another Dell that has a bios password i need cleared, I have attached the backup below. Thank you in advance.

Model: Latitude 7400
Service tag: 9JH30R2-CF1B

[peste]

Hey so I haven't received the other laptops to test that last file you sent as yet , but as i get to test i will certainly post here. In the mean while i have another Dell that has a bios password i need cleared, I have attached the backup below. Thank you in advance.

Model: Latitude 7400
Service tag: 9JH30R2-CF1B

This is not the correct bios... post the 32Mb bios...

[berrylinx]

This is not the correct bios... post the 32Mb bios...

Ok i uploaded this one after to the same post but didn't realize you responded before, I've re-uploaded here

[berrylinx]

Ok i uploaded this one after to the same post but didn't realize you responded before, I've re-uploaded here

Any body here able to help me with this please?

Model: Latitude 7400
Service tag: 9JH30R2-CF1B

[volinakis]

Any body here able to help me with this please?

Model: Latitude 7400
Service tag: 9JH30R2-CF1B

try

[berrylinx]

try

doesn't work, machines doesn't even turn on, just an orange indicator light flashes when you press the power button, but no fan spin and no boot. i checked the bios and its seated perfectly

[volinakis]

doesn't work, machines doesn't even turn on, just an orange indicator light flashes when you press the power button, but no fan spin and no boot. i checked the bios and its seated perfectly

remove cmos battery and let it run for 2-3 minutes if you sure your chipset is proper soldered.

[berrylinx]

remove cmos battery and let it run for 2-3 minutes if you sure your chipset is proper soldered.

Tried that but still same issue, still no power

[volinakis]

Tried that but still same issue, still no power

put back original bios, if laptop is not working it means you did a bad backup to your bios.

[berrylinx]

Yes I assumed this was the issue and now I've overwritten the original, what can I do now to resolve this issue? I've tried writing back the original and experiencing the same issue. How can I get back a good bios for this unit now?

[Markus1741]

Yes I assumed this was the issue and now I've overwritten the original, what can I do now to resolve this issue? I've tried writing back the original and experiencing the same issue. How can I get back a good bios for this unit now?

Hello you can try this file maybe it helps ....

[berrylinx]

Hello you can try this file maybe it helps ....

Hey just tested and same result, still no power other than orange indicator light when i press the power button