Hello, i just swapped CPU(i5-8350u) from fujitsu lifebook e548 to Dell Latitude E7490 Board, all resistances are fine, laptop wants to boot but after 1 second draw of 0,3A its turning off, after pressing power on button same situation. I've cleaned ME region and same situation. Is it boot guard problem - and if it is, is it any chance to bypass this or this cpu just can't be used in Dell.
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Still not aware of any trick to bypass bootguard. Btw, Was the source and target SOC same SKU? -
If the e548 has no boot guard you can mod the E7490 bios ME firmware. Change boot guard to 0 and fill the OEM key with 00`s of the same length as the dell OEM key. It should be ok then, but you will have to make sure the bios doesn`t get updated. If you did it the other way around and put the dell CPU onto the e548 it wouldn`t work as boot guard is burned into the chip.Comment
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All the manufacturer's are trying every trick up their sleeves to disable repairs. Simple Use and throw.Comment
I attached bios from dell and fujitsu.
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My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?
Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?
My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
I have tried multiple different Dell power adapters. My Dell... -
Hi masters, need your help in solving this mystery.
i have a dell optiplex 7090 micro that i bought from local kijiji.
when i turn it on, error comes out saying no hard disk.
i go to bios to check the boot option, only httpboot shows. If i try to add boot option, it only shows file search but nothing happens when i click.
i took out the ssd and put it into old laptop and format and installed the windows 10 and put it back into the desktop. It boots up and same error again no hard disk.
it seems as if the computer doesnt recognize the ssd... -
So i had this laptop dell latitude 5410 10th gen, good condition and new ssd and 16 gb ram .
The problem is it takes more than a minute to boot ..
The boot sequence starting with a 30 sec black screen and the the dell logo for 20 and when the windows start loading it takes like 7 sec .
Can someone suggest something to fix -
Hi,
I have this laptop for a long time, still it does it's job, like browsing, word , excel. Two years back laptop Hinge base broken but now it's damaging other parts of laptop so I tried to totally remove the embedded display cable from laptop and tried to boot only with external display monitor, but it doesn't boot and gives single beeps. BIOS checking the embedded display to be connected.
So checked the schematics to bypass this issue.
Found something but I don't know how to read this schematics.
Dell 3537 mobo 9982p rev 3
Schematics attached,... -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,...
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