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Dump Bios with a test clip - Dell latitude E7240
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- vnn567
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7 years 5 months ago #5258 by vnn567
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Dump Bios with a test clip - Dell latitude E7240 was created by vnn567
I just have bought a EZP2010
I can not Dump BIOS Dell latitude E7240
The chip on my laptop is a winbond 25Q32FV and 25Q64FV
I have all the tools to re flash the chip. I want to use the test clip to reflash the chip without desoldering the chip from the motherboard.
I did it with tutorial ( The image attached ) .But I can not read Chips
Please help me
I have send The picture attach
I can not Dump BIOS Dell latitude E7240
The chip on my laptop is a winbond 25Q32FV and 25Q64FV
I have all the tools to re flash the chip. I want to use the test clip to reflash the chip without desoldering the chip from the motherboard.
I did it with tutorial ( The image attached ) .But I can not read Chips
Please help me
I have send The picture attach
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7 years 5 months ago #5260 by vnn567
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Replied by vnn567 on topic Dump Bios with a test clip - Dell latitude E7240
help me
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7 years 5 months ago #5273 by k-pax
Replied by k-pax on topic Dump Bios with a test clip - Dell latitude E7240
hi,send code of mother board:LA-9431P......
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7 years 5 months ago #5275 by vnn567
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Replied by vnn567 on topic Dump Bios with a test clip - Dell latitude E7240
code of mother board : VAZ50 LA-9431Pk-pax wrote: hi,send code of mother board:LA-9431P......
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7 years 5 months ago #5277 by reverendalc
Replied by reverendalc on topic Dump Bios with a test clip - Dell latitude E7240
where are you getting your 3v3 from? that diagram suggests that you must use 3v3 from the MLB:
according to this, then pins 3,7,8 on the IC must be board supplied 3v3 NOT programmer supplied 3v3.
data sheet says chip accepts 2.7v-3.6v.
which programmer are you using?
if you're using the MLB supplied 3v3, test for voltage. you may have to power on the laptop to the lock screen or BIOS screen etc for the logic board to supply 3v3 to the chip.
experiment on reads in various power states.
according to this, then pins 3,7,8 on the IC must be board supplied 3v3 NOT programmer supplied 3v3.
data sheet says chip accepts 2.7v-3.6v.
which programmer are you using?
if you're using the MLB supplied 3v3, test for voltage. you may have to power on the laptop to the lock screen or BIOS screen etc for the logic board to supply 3v3 to the chip.
experiment on reads in various power states.
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7 years 4 months ago #5514 by Ghost3DO
Replied by Ghost3DO on topic Dump Bios with a test clip - Dell latitude E7240
If you need to read IC on the board, you must desolder and pull up from the board chip VCC or chip GND 
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7 years 4 months ago #5515 by reverendalc
Replied by reverendalc on topic Dump Bios with a test clip - Dell latitude E7240
If you need to power the laptop, try removing all ram and powering on. It should power but not boot or do anything. Chances are nothing will lock the chip though you may want to sniff SPI traffic to be sure.
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7 years 4 months ago #5591 by Flash22
Replied by Flash22 on topic Dump Bios with a test clip - Dell latitude E7240
Been through this a few times myself, the programmer can not supply enough current to power the chip and surrounding circuitry so will not read the chip or fail to verify it
desolder the chip if you do not have smd equipment use low melt sold and matching low temp flux or a chip quik kit with a low watt iron
desolder the chip if you do not have smd equipment use low melt sold and matching low temp flux or a chip quik kit with a low watt iron
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7 years 4 months ago #5592 by reverendalc
Replied by reverendalc on topic Dump Bios with a test clip - Dell latitude E7240
That is entirely possible that powering the chip externally, other components will power on as well and your voltage will drop.
I assume this is why the tutorial says to power the system internally.
Have you tried pulling the ram and powering the laptop on, then connecting your programmer with ground but without the 3v3?
I assume this is why the tutorial says to power the system internally.
Have you tried pulling the ram and powering the laptop on, then connecting your programmer with ground but without the 3v3?
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7 years 4 months ago #5597 by Flash22
Replied by Flash22 on topic Dump Bios with a test clip - Dell latitude E7240
I find it easier to pull the chip than mess around TBH
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7 years 4 months ago #5602 by reverendalc
Replied by reverendalc on topic Dump Bios with a test clip - Dell latitude E7240
I agree with that for you and I perhaps, but the main point of the forums here is to create a process that's reproducible by even the more novice users (-:
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7 years 4 months ago #5618 by zenelli
If you need Bios Password i can calculate for you, no need bios dump.
Replied by zenelli on topic Dump Bios with a test clip - Dell latitude E7240
vnn567 wrote: help me
If you need Bios Password i can calculate for you, no need bios dump.
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7 years 4 months ago #5637 by k-pax
Replied by k-pax on topic Dump Bios with a test clip - Dell latitude E7240
zenelli,you can remove password bios dell? how please?
thanks
thanks
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7 years 4 months ago #5638 by vnn567
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Replied by vnn567 on topic Dump Bios with a test clip - Dell latitude E7240
i can do it
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7 years 4 months ago #5639 by vnn567
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Replied by vnn567 on topic Dump Bios with a test clip - Dell latitude E7240
i can do itk-pax wrote: zenelli,you can remove password bios dell? how please?
thanks
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7 years 4 months ago - 7 years 4 months ago #5642 by k-pax
Replied by k-pax on topic Dump Bios with a test clip - Dell latitude E7240
how vnn567,please
bios dump of dell have $svs?
bios dump of dell have $svs?
Last edit: 7 years 4 months ago by k-pax.
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7 years 4 months ago #5644 by zenelli
Replied by zenelli on topic Dump Bios with a test clip - Dell latitude E7240
I only need service tag number to generate bios master password
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7 years 4 months ago #5894 by Lucascell
Replied by Lucascell on topic Dump Bios with a test clip - Dell latitude E7240
Hello, i have a dell inspiron 15 with a bios passwrod, i have the service tag number... can u provide me the password if i send the code to u?
61HD682
thanks
61HD682
thanks
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7 years 4 months ago #5898 by SargFowler
Replied by SargFowler on topic Dump Bios with a test clip - Dell latitude E7240
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7 years 4 months ago #5899 by zenelli
what's the suffix after 61HD682
like this:
1234567-595B
1234567-D35B
1234567-2A7B
1234567-1D3B
1234567-1F66
1234567-6FF1
Replied by zenelli on topic Dump Bios with a test clip - Dell latitude E7240
Lucascell wrote: Hello, i have a dell inspiron 15 with a bios passwrod, i have the service tag number... can u provide me the password if i send the code to u?
61HD682
thanks
what's the suffix after 61HD682
like this:
1234567-595B
1234567-D35B
1234567-2A7B
1234567-1D3B
1234567-1F66
1234567-6FF1
Please Log in or Create an account to join the conversation.
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