Debug Card Error Code and Solution

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  • badboyzzz
    A2229 ipad pro 12.9 4gen strange problem Logic Board related charging but no usb data
    by badboyzzz
    I have a strange problem with my iPad Pro 12.9 4Gen / A2229. When I start the device, it stays on the Apple logo, but when I heat the back of the device with a hair dryer, the device boots, but this time there is an interesting problem. The iPad is charging, but there is no USB data on the computer. The USB charging port has been changed and the chips seem normal, but I have given it to 2 different Apple services in Latvia, but the repair could not be done. Is there anyone who can help with this? Can someone support the repair by sending only the motherboard within Europe? Thank you.
    12-28-2024, 02:11 PM
  • Zeonalbasta
    Thinkpad X1 Carbon "LMQ-1MB 12298-2 48.4LY26.021" VCC3M problem
    by Zeonalbasta
    i have a problem with thinkpad X1 carbon gen 2 "LMQ-1MB 12298-2 48.4LY26.021"
    The laptop was turned off because the MOSFET was not transmitting voltage. After checking it turned out that the gate pin on the MOSFET was the problem, because it was producing an inappropriate voltage. and it was discovered that the problem was with the Think engine, so I decided to reprint each pin, and finally the mosfet could work properly. However, there is another problem, even though the voltage has been supplied to the laptop, it still won't turn on, there isn't even an LED indicator. After double...
    09-13-2024, 01:17 PM
  • Ross Kohler
    Diagnosing South Bridge (FH82H370) on Asus H370-Pro Gaming Motherboard
    by Ross Kohler
    Hi,

    I'm learning about motherboard repair and I believe I've traced the issue down for the South Bridge on the particular motherboard I'm working on. My path of concluding that:
    - There's no sign of any attempt to power on when pushing the power button.
    - No PSON signal is reaching the 24-pin ATX connector.
    - The Super IO chip is receiving the PS_SWITCH signal from the power button and is relaying this signal back to the South Bridge.
    - The Super IO is not receiving the S_SLPS#_R signal back from the South Bridge
    - If I pull the Super IO S_SLPS#_R pin...
    04-16-2024, 09:36 AM
  • lazaro.089
    Asus Zephyrus M16 / GU603ZW problem
    by lazaro.089
    Full name/ Model: Asus Zephyrus M16 / GU603ZW-M16.I93070T
    CPU: Core i9-12900H
    Onboard 8GB DDR5 4xMT60B1G16HC-48B:A

    Problem: This laptop was brought to the shop with the board already meddled with. Last technician (maybe without the right tools) removed an electrolytic capacitor (PCE9203) sensing resistor (PRS9801) and probably flashed both BIOS (U2802) and VBIOS(U7802).
    The laptop's behavior is: When connected, it tries to power up. CPU powers on, and (allegedly) the power sequence finishes and goes to S0 (PLT_RST = 3.3V). It consumes 600mA, ramps up to 1.100 A and...
    08-26-2025, 06:33 PM
  • SDNarcia
    Dell 15R-5521 keyboard problem (KBC?)
    by SDNarcia
    Hello, I have a Dell 15R-5521, with the problem that the Ctrl, Alt, Shitf and Num Lock keys do not work, I tested the keyboard with a keyboard tester and it is functional, I also got another new keyboard and the computer has the same problem with the same keys. Check continuity between the ZIF connector from the keyboard to the KBC and all pins are correct. I cleaned the ZIF connector and the KBC and I still have the same problem. I reinstalled windows just in case, and it didn't work. I updated the BIOS to the latest version A16 and there were no changes.

    As additional information,...
    07-20-2024, 10:47 PM
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