XMG (TongFang) GK7CP6S V1.0 - doesn't power on

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  • BalkanBoy
    Senior Member
    • Feb 2017
    • 69
    • Croatia
    #1

    XMG (TongFang) GK7CP6S V1.0 - doesn't power on

    Hi, I got XMG branded laptop that doesn't power on. When you press power button nothing happens for like 10 seconds and than just briefly power LED comes on.
    In that moment GPU gets power and 2 CPU coils as well. All the time with charger connected, 5V/3.3V are present and all 3 PCH voltages are present which is also bit strange.

    I also noticed that 5V controller gets bit hot in the moment (U9 on schematics). I measured bootstrap BST pin 8 got 8.8V. I changed it but with another controller I also got 8.8V.
    I don't know if that's normal. I attached part of schematics and I hope someone experienced can tell me if that's good or not.

    Thanks!
    Attached Files
    Tags: None
    • Biosnoober
      New Member
      • Feb 2025
      • 2
      • germany
      #2
      I got the same Issue, did you solve it?
      On mine, I checked NVVD and got a short. I will try to Desolder the coils L63 to L66 and see if it will post at all.
      I tried also to Flash BIOS and EC, but no luck.
      Last edited by Biosnoober; 02-26-2025, 03:45 PM.

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