Lenovo T470 power + 3 blinks loop

Collapse
X
Collapse
+ More Options
Posts
 
  • Time
  • Show
Clear All
new posts
  • pirih77
    Senior Member
    • Oct 2020
    • 62
    • Slovenia

    #1

    Lenovo T470 power + 3 blinks loop

    Hello,
    I have a t470 with this symptoms.
    Ito powers on, power button blinks 3 times and than it repets this on and on.
    Could it be something with bios ?
    Original bios attached.
    Attached Files
  • lapfix
    Badcaps Legend
    • Mar 2020
    • 2732
    • my workshop

    #2
    Re: Lenovo T470 power + 3 blinks loop

    try another charger

    Comment

    Related Topics

    Collapse

    • Tynan Dill
      Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
      by Tynan Dill
      I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

      Upon bringing it home and plugging it up, it showed a standby light.

      I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

      The screen seems to blackout and stay black, but with a flashlight I can see the display.

      With my Playstation 4 connected via HDMI, and running a game I can hear sound.

      Assuming...
      11-22-2024, 01:46 PM
    • survivalbloke
      Lenovo LOQ 15APH8 - no post, power button blinks steadily
      by survivalbloke
      Model: Lenovo LOQ 15APH8
      Serial: MP2LMAV
      Board: ILG50 LA-M811P Rev 1A

      This device came in for no POST/boot. It is drawing 2a when connected to the charger. Pressing the power button, I get keyboard backlight, then the power button blinks continuously, 1 second on , 1 second off. I flashed a brand new(unmodified) BIOS from Lenovo's website but that did not do anything. I was told by someone here, that despite missing the DMI blocks, if this were a BIOS issue, it should still boot after replacing the BIOS. There is only .2 ohms resistance on the GPU coils. I have been...
      07-24-2025, 12:51 PM
    • PantherDave
      Microsoft Surface Pro (5th gen) model 1796 - no power
      by PantherDave
      Hi all!

      I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅

      I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
      https://www.badcaps.net/forum/troubl...-hardware-devi...
      05-29-2024, 02:01 PM
    • GLISIT
      Asus Probook P5440UF-XB74 power issue
      by GLISIT
      Hi all,

      TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!


      I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!

      A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
      01-16-2025, 02:29 PM
    • Mita99
      Lenovo Thinkpad P72 EP720 NM-B723 MB - Power disabled within 2 seconds after plugging the charger
      by Mita99
      Hi,

      Try to repair a Thinkpad P72 EP720 NM-B723 MB with I7-8850H processor and N18E-Q1-KB-A1 (P3200) GPU with 6GB memory. Unfortunately there is noinfo what happened to the laptop. I got it disassembled with parts missing, like keyboard, battery.

      Unfortunately I have no schematic available for me (requested in the sub porum) but got the boardview file.

      Symptom: after connecting to the charger the power led light up for one-two second and switch off. After a couple secons the power led light up for half a second and switch off. No battery, no IO board, no...
      04-27-2025, 07:20 PM
    • Loading...
    • No more items.
    Working...