lord
Badcaps Veteran
Last Activity: 06-02-2025, 07:07 AM
Joined: 05-03-2011
Location: Zagreb
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Could it be the CPU? Anybody have datasheet for RAA209100B?... -
Hi,
Thank you for your answer and helping out.
As you requested I soldered a wire on pin 14 of the trackpad connector JT400: the voltage IPD_LID_OPEN_1V8 signal is 1.8V when the lid is open, and 0V when lid is closed. I mentioned that i tested the computer with a known working board and the backlight was working so i figured it must be a problem in the logic board, not the peripheral components. Do you agree?...Leave a comment:
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Hi,
Also water damage induced backlight problem. I have checked with a known good board - and backlight works - so it's not the lid angle sensor or the lcd.
I have transfered all the components damaged from a known good board and checked all damaged traces and fixed them. Clearly am missing something. Can't find a short anywhere on the board so i'm thinking logic. Last thing i did was bought a new RAA209100B from LRF (it does not look the same as original but it is the same part number) - and still no luck. I then checked the feedback traces and current sense resistors traces which...Leave a comment:
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i have one of these clone vertyanov but cant never get it to workLeave a comment:
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Also had this problem, the DC jack is busted - it should pull the ADP_ID to GND but it does not, that is why there is no ACDET signal. Removing PQ7 or replacing DC jack PJ11 solves the issue.Leave a comment:
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Oouch, thanks for the heads up...Leave a comment:
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Please Fix, no picture.
Dell Vostro 3500
SN: G3Q0VC3
LA-K032PLeave a comment:
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i tried that, same thing, this is the BIOS from Lenovo website...Leave a comment:
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Hi,
I sadly don't have the original BIOS, here is the extracted information from BIOS i downloaded from web
Flash chips in VSCC table:
EF4017 (Winbond W25Q64)
C84017 (GigaDevice GD25x64)
C22017 (Macronix MX25L64)
1C7017 (EON EN25QH64)
The chip that is on the board is N25Q064AX3E...Leave a comment:
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First I used an equivalent but then changed back to originalLeave a comment:
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Lenovo Z50-70 NM-A273 BIOS SPI not supported
Hi guys,
Anybody came accross this one?
I put in a new BIOS file, old one was corrupted (don't have the original)
Tried first with Z50-70 bios but i couldn't update to latest BIOS via upgrade utility, the tried for Z40-70, i manage to upgrade to latest but this warning message is always there (except for the first boot)
Anybody have any ideas?
[ATTACH=JSON]{"data-align":"none","data-attachmentid":"3204105","data-size":"medium"}[/ATTACH]... -
Can anybody help?
I have this one for repair, does not charge the battery, does not bring up 20V from the charger. So i input 20v to VSYS from dc power source, now it turns on for a 15 seconds and turns off. Current consumption is 600-700mA. As i can see all power supplies are on expect GFX integrated. Also tried to inject 20V to all the 20V rails at the same time: VSYS, VINT20_IN and USBC_VBUS20 but nothing changes.
Question is, should it turn on with only VSYS supplied?Leave a comment:
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Re: Lenovo V310-15IKB SCHEMATIC
is anybody able to buy a working IT8886H for this board?Leave a comment:
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Re: Acer E5-553 DA0ZABMB6E0-REV.E
It wasn't the BIOS, chips that i was using were not compatible...Leave a comment:
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Re: Acer E5-553 DA0ZABMB6E0-REV.E
I tried on Acer e5-553G-F33P N16Q3 board DA0ZABMB6E0 Rev E
MAIN BIOS: turns on but no picture, with old BIOS works good but shut's down randomly
EC: no power onLast edited by lord; 06-16-2023, 04:00 AM.Leave a comment:
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Re: hi i need hp pavilion 15-dk0068wm bios
Anybody have EC BIOS for la-h461p PLEASELeave a comment:
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Re: hi i need hp pavilion 15-dk0068wm bios
don't have EC, KB9542 is not readable - vcc of the chip is shorted to ground
i can read the original BIOS of you need it, but i don't see how can this help you get the EC bios? can you please explain?...Leave a comment:
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Re: hi i need hp pavilion 15-dk0068wm bios
Hi,
Anybody have EC BIOS?Leave a comment:
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Re: hi i need MACBOOK A1398 EMC 2673 M/B 820-3332-A with VGA PLZ
Dummy serial number is C02J99ZZDKQ5 (length 12), you can find it on address 006904dc...Leave a comment:
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Re: For HP 15-ec00 DA0G3HMB8D0 REV
Quanta G3HA
i have it here it says on it 48BAALeave a comment:
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