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I removed the resistors, same problem. In safe mode the problem appears to not occur, probably because of the lack of video drivers, so the machine does not draw much power.

Didn’t test in safe mode neither removed those resistors. Will do it on Monday and let you know

Hello. Got this board here that shuts itself down when stressed. I thought initially it was bad battery because it was indeed bad. So I replaced it three times and same thing. Decided putting in an original battery that's working perfectly on another machine and problem persists, so I discarded...

HALL_SENSOR_RIGHT (Pin1 R5261) = 3.42V HALL_SENSOR_LEFT (Pin1 R5251) = 3.42V U5255: Pin 1: 3.42V (Measured on Pin 2 of R5261) Pin 2: 3.42V (Measured on Pin 2 of R5251) Pin 3 = 0V Pin 4 = 3.42V (Measured on Pin 1 of R5255) Pin 5 = Unconnected Pin 6 = 3.42V (Measured on Pin 1 of C5255)

Hello. I got this one here with very strange behaviour... Machine was not turning on. I reseted the SMC and machine worked perfectly for some days. Gave it back to costumer, after some days she brought it back to me with same problem. After replacing the battery machine worked for a whole week...

By internal short you mean pin 8 shorted to pin 2? If so, none of them are shorted.

All CC1/2 lines read around the same about 0.550˜560

Connecting cable to their respective ports of course... Will take measurements in diode mode... I was already doing it, but didn't finish yet.

Hello. Got this board from another store. It has already been poked/cleaned, so I don't have its history. Apparently no missing components. If I plug USB-C charger I get 5V on FB200 and F3000 does't matter if the USB-C cable is reversed or not. On the other 2 fuses I only get 5V if it's on an...

Did it… same

Tried.. Same thing.

Yep, same in safe mode

Drives don't disappear on EFI even leaving it connected.

I’ll leave it connected on EFI tomorrow. Problem after os is loaded happens with ISB 2, 3 and hdmi

Just replaced it, same thing! Also replaced U2890, which is the BIOS chip for TBT

What chip is that? Yes, I get power on USB, but no communication nor HDMI signal.

Hello. This board came to me with no life. Shorted 3V3 line. Corrected that problem and the board started. Everything works fine except for USB/Thunderbolt/HDMI. I have a Satechi USB-C hub here which I use on all my personal Macs and use it to test all costumer's Mac, So I know it's working...

Yes, I agree it's not a driver issue because I formatted and installed new fresh OS and problem persists. But, what I meant is that it's only after all drivers load that the problem starts, telling me it's an issue when it requires more from the graphics side... I'll try to get a test display...

It goes black with just backlight on, no image. I’ll test that signal tomorrow. I don’t believe it’s a screen problem because the problem only occurs after system completely boots and if video drivers are loaded.

Hello. Got this one here with a strange problem. Internal video is lost a few seconds after the system loads. Just internal video is gone, backlight keeps on. On external monitor it works ok. If I start in safe mode everything works, except of course graphics drivers are not loaded, but internal...