HP CQ 71-235E0 not powering on

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Esse
    Badcaps Veteran
    • Apr 2014
    • 317
    • TOGO

    #1

    HP CQ 71-235E0 not powering on

    i get 3v at power button,but no light when power is pressed.i flashed the bios and the machine is now on with no image.and also one led at the right side of the keyboard flashing.i did a reflow stil no image
    mb;DAOOP6MB6D0 REV
    1-old bios
    2-bios used to flash old one
    ANY help please
    Attached Files
  • medinfo
    Badcaps Veteran
    • May 2016
    • 328
    • Morocco

    #2
    Re: HP CQ 71-235E0 not powering on

    CQ71 Bios dump working
    Attached Files
    Last edited by medinfo; 06-02-2016, 09:51 AM.

    Comment

    • Esse
      Badcaps Veteran
      • Apr 2014
      • 317
      • TOGO

      #3
      Re: HP CQ 71-235E0 not powering on

      Medinfo,i use your bios but no improvement

      Comment

      Related Topics

      Collapse

      • valvashon
        LG 55UH6150- trouble powering up, then half lit screen (pictures!)
        by valvashon
        The 55" LG has been in the basement for a few months without being used. Turned it on yesterday, set came on as it should and showed a complete screen for about 5 seconds (was on a broadcast channel but no antenna was connected), then the screen went mostly dark with about 1/3 of the screen on the right lighting up with brighter lines in that lit part (sorry, no pictures of that). Power LED was cycling too, preventing the TV from fully powering up.
        Pulled the back off, all boards looked OK. Pulled the LED connector, turned the set on to see if it would power up but I don't belive it...
        11-24-2024, 12:08 PM
      • DarKHawK
        Asus 2021 ROG Strix G17 G713 not powering on and not charging.
        by DarKHawK
        Hi,

        I have an Asus 2021 ROG Strix G17 G713 that is not powering on and not charging. Board number is G533-6050A3250201.
        When plugged in, I found that the 3.3v/5v regulator was getting extremely hot, so I removed, next I found a short on the 3.3V rail. Removed the two 3.3v mosfets and found one of them shorted, but still the short on the rail did not clear. Then I injected voltage at that rail, and found out that U60400 the 2.5v rail was also getting hot. Removing it changed the short from 0 ohms to about 5-6 ohms, then I remove a bunch of other suspect components but that did...
        07-11-2025, 05:24 AM
      • serious_electron
        Strange! Acer laptop not powering on but charging the battery (orange light on when charger and battery plugged in).
        by serious_electron
        Hello Everyone!

        I have an Acer Aspire A315-42 laptop. I generally leave it on for long time by closing down its lid (so it enters the sleep mode). Recently, it rained quite heavily in out area. And the humidity and moisture seem to be high. So one late evening, after I opened the lid and turned on the laptop, it did power on as the blue light turned on but after it booted to the desktop screen, just 5-10 seconds after both the screen and blue light went out and laptop shut down (the blue power light turned orange). And after 2-4 seconds that orange light went off and the laptop died.
        ...
        06-28-2025, 02:57 PM
      • ShadowAi12
        ASUS ROG STRIX B550-F GAMING — Board not powering on properly
        by ShadowAi12
        Hi,
        I recently bought an ASUS ROG STRIX B550-F GAMING motherboard that was listed as "dead, not powering on." However, it does show some signs of life. I've performed several basic measurements and would like to share the results.
        • The board enters a "ready to power on" state after plugging in the PSU.
        • Pressing the power button increases power draw.
        • Sometimes, touching the RSMRST_L pad with a multimeter probe causes the board to shut off and return to standby.
        Measurements:
        (taken after pressing the power button, while the board is attempting to start)
        • H_SKTOOC#
        ...
        06-11-2025, 01:05 PM
      • TechSplendid
        MacBook A2442 not powering on – suspecting CD3217, but replacement didn’t help
        by TechSplendid
        Hi All,

        I'm working on a MacBook Pro A2442 (14", 2021) that's not powering on. On two out of three USB-C ports, I get 5V and the current briefly ramps up to around 0.210A before dropping to 0.036A. On the third port (JF600), I only get 0.0045A and it stays there.

        Initially, I suspected a faulty CD3217 on that port, especially since I noticed signs of previous liquid damage near the JF600 USB connector. I replaced the CD3217 with an UF400 (from an A2442 donor board from the same location). According to the supplier, this should be a compatible version, but the behavior...
        04-09-2025, 02:13 AM
      • Loading...
      • No more items.
      Working...