Recent content by HOSOI

  1. H

    820-2915-B turn on, no video

    please check your private messages and these videos I recorded to videos of my desk with the board, one just booting and the other one while getting the voltage from VCORE.
  2. H

    820-2915-B turn on, no video

    with the USB pen drive there is no activity, and yes without ram VCORE stays high, so what next then.
  3. H

    820-2915-B turn on, no video

    yes, VCORE drops to 0.76, and there is USB activity I connected a USB ethernet adapter and I have link on the adapter and the switch as well, but like I said is weird cuz if I remove the ram I dont get the beep for no ram on it and I also have usb activity without ram. I did smc bypass and the...
  4. H

    820-2915-B turn on, no video

    everything is intact there.
  5. H

    820-2915-B turn on, no video

    of course, I lifted one side of each resistor. in this case what next? flash the original bios back?
  6. H

    820-2915-B turn on, no video

    nothing happened sr. Everything still the same. no video at all, I confirmed that there is mouse activity, noticed that the DVD ROM is not powering on, before flashing it was. I also tried an external monitor just in case. I'm curious about something, why there is no beep when there is no RAM...
  7. H

    820-2915-B turn on, no video

    Hello, thank you for your valuable help, unfortunately, I don't have medusa yet. if is not too much to ask you, how can you do that with the .bin file? is there a guide for that? I'd like to learn ho to do it. https://drive.google.com/file/d/1zwrXl1b5tBnedsh_qexrI70pB6f5DP_x/view?usp=sharing BR
  8. H

    820-2915-B turn on, no video

    that sounds in part good. Sorry for my ignorance but how can I disable the GPU in BIOS?
  9. H

    820-2915-B turn on, no video

    VCORE drops to 0.75 without the battery connected and just the display and ram on it, but with the battery connected, the display, and ram it drops to 1.06. is that normal?
  10. H

    820-3115-B turn on, no video

    I bought that T862 when I didn't know anything about repairs, then I realized that it was wasted money. which bga machine do you recommend, maybe it worth it try to spend some money on that.
  11. H

    820-2915-B turn on, no video

    PLT_RESET_L __3.34 PP5V_S5__5 PP5V_S3__5 PP5V_S0__5 PP3V3_S4__3.34 PP3V3_SUS__3.34 PP3V3_S5__3.34 PP3V3_S3___3.34 PP3V3_S0__1.34 PP1V8_S0__1.77 PPVCORE_S0_CPU__1.14 PP3V3_S0GPU___3.34 PPVCORE_GPU___1.11
  12. H

    820-3115-B turn on, no video

    too bad, I guess that I need a BGA machine for that. I do have one but I'm not sure I'll be able to do that job with that. I bought that very long time ago. please see the link and let me know what do you think about that cheap BGA rework station, and please also tell me where I can get the PCH...
  13. H

    820-3115-B turn on, no video

    I turned off the OVP and let the amp to the max, the only thing the gest hot is the PCH, I used a seek thermal camera for that
  14. H

    820-2915-B turn on, no video

    Hello, this MP turns on, charge, have green and orange light at MagSafe, but there is no video and no chime either, there is no sign of water or burned parts, flashed the spi just in case and nothing, removed the ram and no beep, connected external monitor and nothing. any clue where to start? BR
  15. H

    820-3115-B turn on, no video

    it looks like it is a dead PCH since the only thing that gets hot is the PCH, also noticed that PP3V3_SUS is shorted to GND too.
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