Dell 1907FPt - 2 Secs to Black

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  • HTR-Informatique
    Dell G3 15 3500 - Battery bug (black screen and flashing keyboard backlight)
    by HTR-Informatique
    Hello,

    YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo

    I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.

    On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.

    I also changed the screen because the PC fell and the screen was broken.

    I changed the battery with a new and original battery.

    I also had corrosion/oxidation on the...
    02-09-2025, 06:51 AM
  • Bowline
    Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
    by Bowline
    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...
    06-11-2025, 10:13 AM
  • jake-b
    dell e6540 boots to black screen (no dell logo)
    by jake-b
    good morning all,

    i purchased a used dell e6540 laptop used 10 months ago from a vendor on ebay. intel i-7 processor, 16 gb ddr3 memory, 256 gb ssd., mobo la-9413p (rev 1.0 dated 2014-08-04). i've inflicted no damage on it since purchase but its past is unknown. starting 2 weeks ago it began to fail to boot (initially 9 of 10 boot attempts failed, now 10 of 10 fail). there was no new hardware or software added (i was using as a kodi video server). the post process doesn't complete and booting no longer displays the dell logo screen - screen remains black with no backlight. some other...
    01-08-2024, 10:29 AM
  • Swedishpower
    Dell G3 15 3500 black screen
    by Swedishpower
    Hello
    I have search everywhere for a solution for my problem, but cant find it anywhere.

    When I was away to trow some garbage i always look in the electronic bin.
    and this time i find a laptop.
    Dell G3 15 3500, when I get home i look at the battery, add one harddrive, plug in the powercord.
    the lamp for charmig is white.

    Tryed to start it, the screen blink for a second, the keyboard lightsup, the fans and HD starts.
    but no Dell logo.
    I tryed with a hdmi cable to another screen, still black.
    I started to search solution and tryed...
    07-06-2025, 06:18 AM
  • Chivo77
    DELL LATITUDE 5420, ST 20TFKN3, LA-K491P REV:2.0 (A01) powers on and die about 15 secs later, no video
    by Chivo77
    hello friends, I have a DELL LATITUDE 5420---MODEL P137G, ST 20TFKN3 LA-K491P REV:2.0 (A01) and its quite a challenge. It powers on with the battery disconnected, lasts on for about 15 secs, and then shuts off. It does the same with battery only (no adapter). With battery and adapter it sometimes starts after hitting the button several times. It displays nothing in every case. Since only the Boardview is available, I guided myself with schematics similar to this laptop (I'll add them down).Some measurements:

    1- After receiving power SIO_SLP_S0# goes high and never changes.
    2-every...
    07-03-2025, 09:20 AM
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