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Re: help me dell 7320-7420 PASS
Thank you for the file, Unfortunately while soldering to the board I shifted few components and laptop won't power on anymore even bios and components are soldered back.
I have got one more laptop with identical motherboard (Dell Latitude 7320). Could you pls unlock the dump file attached for me? I have a private repair shop and learning the stuff. What method you use to clear the pass? Are you able to find it inside the file? You are my saviour with both cleared bioses. Thank you again in advance.Last edited by SMDFlea; 04-10-2023, 10:54 AM.Comment
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Last edited by SMDFlea; 04-10-2023, 10:54 AM.
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Re: help me dell 7320-7420 PASS
Thank you. I programmed the data to the chip and soldered back. Now I can't see any light on and measuring the bios chip pins voltage has changed to 1.8v instead 3.3 Does it needs to be activated somehow or I burned something out again? Thank you for help.Comment
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Last edited by hoaca388; 07-17-2022, 08:26 AM.
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Re: help me dell 7320-7420 PASS
The voltage changed on the 7420 motherboard as well. It looks like I burned something out but I just soldered the chip with hot gun.I am getting this values on bios chip (Winbond 25R2S6JVEN)
Pin 1 - 1.3V
Pin 2 - 1.9V
Pin 3 - 1.9V
Pni 4 - 0V
Pin 5 1.3V
Pin 6 - 1.9V
Pni 7 - 0V
Pin 8 - 0VComment
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Re: help me dell 7320-7420 PASS
As far as I know pin number 8 must have 3.3 volts.
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Re: help me dell 7320-7420 PASS
I found out the voltage is ok when chip is de-soldered. Once soldered back the voltage drops down as mentioned. Any idea why this behavior?Comment
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Re: help me dell 7320-7420 PASS
Post your problem here : https://www.badcaps.net/forum/forumdisplay.php?f=23
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Last edited by SMDFlea; 04-10-2023, 10:54 AM.
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Re: Dell Latitude 7400 Bios Password
Hello,
can you help me? I do not know exactly which chip to read and where to find it.
I read this one out but the file is only 1MB. Can this be correct?
I have a Latitude 7420 2-in-1 (Not the one in the photo. I got the picture from the internet. But mine looks exactly the same.)Last edited by SMDFlea; 04-10-2023, 10:54 AM.Comment
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Re: Dell Latitude 7400 Bios Password
It is a winbond 25Q80DVSIGComment
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Last edited by SMDFlea; 04-10-2023, 10:54 AM.
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All donations to Badcaps are welcome.
Become a Badcaps supporter
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Thanks to all supporters.
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Re: help me dell 7320-7420 PASS
Hi to All friend's and expert teacher
need Dell latitude 7420 #9P0R7M-8FC8 bios unlock code...Comment
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Re: help me dell 7320-7420 PASS
i have LOCKED bios dell 7420 HELPLast edited by SMDFlea; 04-10-2023, 10:54 AM.Comment
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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, i need bios DELL OPTIPLEX 5480 ALL-IN-ONE, or if anyone can unlock my password please.
I couldn't find a generic password... -
Hello folks,
an acquaintance brought me a motherboard from a Dell Latitude 5520 with the mainboard 0g60m3...
Bios corrupt and admin password from his children, they are 7 and 9y old.
Today I wanted to desolder the chip with hot air in order to be able to read it out and possibly rewrite it.
It's not the first time I've done something like this, but Dell is new territory. can it be that dell sticks the bios chips on? I could not remove the chip (W25R256JVEN). is there a how to or information?
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hi , i have a dell 3520 cyborg - 15 11th
while there is no bios lock , there seems to be a enterprise attachment
when i try to install windows 11 it just wont go past the account part , while i know i can bypass , i would rather change key or bios
i have attached the OG Bios could anyone give me a clean one ?
regards...
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