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  • rounin
    MacBook Air A2337 (820-02016) USB-C Port Issue – Only Works in One Orientation (CC Line Problem?)
    by rounin
    Hi everyone,

    I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.

    🛠 Original Issue
    The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
    Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.

    I replaced U3100 (UF400) using a donor board (A2179), and the machine powers on fine now.

    ⚠️ New Problem: One USB-C Port Only Works in One Orientation...
    04-19-2025, 01:18 AM
  • wattage
    AOC AG493UCX 49-inch monitor - Firmware request
    by wattage
    Hello Badcaps Community,

    I purchased a preowned AOC monitor that is not working and out of warranty. It was sold as not working. I am looking for guidance on self-repair. In particular, I am after the firmware for the monitor. At the end, I have included monitor model information and links to pics and vids of the issue.

    The problem is that it will not display a picture on any of its inputs. And the on-screen menu does not appear. The power button works properly. It powers on with the remote as well. But the on-screen menu does not appear, even when not connected to any...
    07-13-2025, 04:41 PM
  • elmark
    HP 15-cw1002ua strange keyboard issue
    by elmark
    HP Pavilion 15-CW1002UA
    S/N 5CD0251CBC
    P/N 7KE54EA

    Hello guys!
    I have a strange issue with my laptop keyboard and I'm lost trying to detect what's wrong - the KB9028Q-C or the keyboard itself.
    It powers on OK and has no other issues except the following:
    • CAPS LOCK does not work at all
    • Fn button toggles Flight Mode
    • When I press 't' or '5', it produces 't5', and when I press 'y' or '6', it produces 'y6'
    • (with SHIFT pressed: 't%' and 'y^' respectively)
    I initially thought it was a keyboard malfunction (internal short, etc.),
    but when I press and hold...
    06-27-2025, 01:10 AM
  • wizard13
    Dynabook Satellite Pro C50D-B-100 - BIOS Issue, Black Screen
    by wizard13
    Hello everyone,

    I am experiencing a BIOS-related issue with my Dynabook Satellite Pro C50D-B-100. When I power on the laptop, the screen stays black, and there is no response from the system. I suspect a corrupted BIOS.

    I have checked the forum and the available documentation but could not find a solution specific to my issue.
    • Brand & Model: Dynabook Satellite Pro C50D-B-100
    • Part Number (P/N): PYU13E-00C00PFR
    • Serial Number (S/N): 22028896H
    • System Configuration (SC): A1PYU13E1127
    • Motherboard Model: IP3_ACN16_MB_V21_20211222A
    • Power Input: DC 19V –
    ...
    02-28-2025, 02:43 AM
  • Titus6
    LG OLE65C1 Stand-By issue
    by Titus6
    Hello everyone,

    I bought an OLED65C1 refurbished TV back in 2022 from a shop. The TV is awesome, this is my first OLED and I really love it.

    However I have an issue with the TV since the end of last year. I noticed when my TV is in Stand-By, sometimes the LED goes off then comes back on. When do so it seem periodical. It only goes away for 1-2 seconds, than comes back on. The TV NEVER turnes off, while it's on, so it's not overheating issue or electrical power issue.

    I bought a service remote (MKJ39170828) and checked the menu 3. Power On/Off Status. I took...
    01-31-2025, 04:01 PM
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