Model: Dell Latitude 3440
Board id: DL340-HSW MB 13221-1 Rev: A00

Laptop produce 2 beeps. RAM is ok (replace and test). And i think RAM Slot is also ok. Board have 2 RAM Slots. All coils have voltage expect PL5101. DRAMRST has only 0.12V. BIOS flashing can't solve the problem. Need help.

PL4503 - 3.3V
PL4101 - 5V
PL4902 - 1.35V
PL4801 - 1V
PL4701 - 1.7V
PL4401 - 17V
PL5101 - 0V

PU5102 pins -
Pin 1 - not stable ( 0.5, 1.3, 5.9 etc ... )
Pin 2, 4 - 0V
Pin 3 - 0.95V
Pin 5 - 2.87V
Pin 6 -...

Hello,
I have a problem with Dell Latitude 9410 - LA-J541P v1.0. This laptop have 2 USB-C ports for charging.
This laptop had broken PD controller TPS65988 - it was heating up to 80 degrees. After changing it to new IC (2 new ones) I don't have 20V, only 5V from USB-C power supply. I checked USB-C ports and they are fine.
TPS65988 voltages:
VBUS/VBUS2 pin 13/14 - 5V
PP_HV1/PP_HV2 pin 1/2/11/12 - 0V
C1_CC1/C1_CC2 pin 24/26 - 1.7V from voltage divider

What does this IC require to change 5V to 20V?

Thanks for help.

Hoping I can get 8FC8 unlock help on this thread since I cannot find an open one for a Dell Latitude 3140.
Service Tag 3LY6TW3-8FC8
MOBO LA-M501P

I've tried reprogramming the 8-bit BIOS chip (GigaDevice 25R256EY) myself by searching for 00 FC AA / 00 FD AA but it's nowhere to be found so I'm turning to the badcaps experts.

It is different from other Dell 8-bit BIOS chips I have unlocked before. 1) Size is 32774 KB, not 32768 KB; and 2) It compresses to a very small file (154 KB), not 11-12 KB as other 8-bit Dell chips. Can someone please tell me what I'm missing?...

please help computrace...Dell Latitude 3189...board numer DGE00/10 LA-F461P REV 1.0 2017-12-01

ST : 50K50N2

This Dell Latitude 5530 will not charge when turned off. when turned on and in bios it will charge properly and the adapter wattage is shown.

I noticed that when in bios if the charger is unplugged the bios still reports the laptop as charging and the charging light in front of the laptop stays on

When charging, PL4401 has a stable voltage of 12.8V however when plugged in but not charging the voltage alternates between 4v and 12v on PL4401

Please help

Hello guys,

Anyone has a clean UEFI Firmware dump for a Dell Latitude 12 Rugged Extreme 7212 from a working board. Mine just died after updating to the latest 1.52.0 version. I had it apart removing all the cards and cmos battery does not seem to help. Right now it just screams at me "TL866 Pro" required. Already purchased some WinBond W25Q128JV SPI Chips to make hard copies and have the WSON Sockets at hand to solder in.
My friends i5 variant did the same after update. His tablet, are a mission critical device used for on the field diagnostic equipment monitoring....

Apologies, my mistaken forgot to share the details
- Dell Latitude 7650
- ST : 52VJY04
Ultra 5 - i5 gen 12

Thank You
Salam...

Hello

Dell Latitude 3510
MB: 19746-1 MOCKINGBIRD-L CML UMA 6L

The pc has no 20V_DCBATOUT. Then i found, that capacitor PC4416 was shorted to ground and PU4401 pin15 also was shorted to ground. Replaced PC4416 and PU4401. Now the 20V_DCBATOUT voltage is 19.1V
The computer still won't turn on​, then I found that voltage 19V_DCBATOUT is pulsing from 3 to 3.1

Also found that charger PU4401 pin24 ACOK is 0V

PU4401 pinout voltages:
1. 3.1 (pulsing from 3 to 3.1)
2. 3.1 (pulsing from 3 to 3.1)
3. 3.1 (pulsing from...

Dell Latitude 12 Rugged Tablet 7202 Board View...

Dell Latitude 12 7275 LA-C321P Laptop Board View...

Hi

i have dell latitude E7270 with following symptoms:
- takes long time to restart.
- sometimes powers on and then off
- sometimes while working it just dies,

From googling online bios clean could possible resolve this?

i was able to save bios and was going to try bios clean myself but get an below error when i drop it in ME analyzer.(unsure whether this sometimes occurs or could be due to bad/corrupt bios)

As ME analyzer gave me an error i just decided to write bios with a cleaned bios from [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/68295-dell-latitude-e7270-bios?p=1463637#post1463637"]E7270...

This specification for the DELL Latitude 7640 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7640 boardview and 7640 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7640...

This specification for the DELL Latitude 5540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5540 boardview and 5540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5540...

This specification for the DELL Latitude 5340 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5340 boardview and 5340 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5340...

This specification for the DELL Latitude 7340 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7340 boardview and 7340 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7340...

This specification for the DELL Latitude 5440 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5440 boardview and 5440 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5440...

This specification for the DELL Latitude 7340 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7340 boardview and 7340 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7340...

This specification for the DELL Latitude 5440 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5440 boardview and 5440 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5440...

This specification for the DELL Latitude 3340 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 3340 boardview and 3340 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 3340...

This specification for the DELL Latitude 7440 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7440 boardview and 7440 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7440...

This specification for the DELL Latitude 5340 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5340 boardview and 5340 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5340...

This specification for the DELL Latitude 3540 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 3540 boardview and 3540 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 3540...

This specification for the DELL Latitude 7640 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7640 boardview and 7640 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7640...

This specification for the DELL Latitude 7640 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 7640 boardview and 7640 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 7640...