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the board was liquid damaged, but someone already has cleaned before me. when you plug a MagSafe, the board doesn't start up immediately.
you will have to wait approx 1min then will boot normally and it passes apple dialogistic.
i can't see any corroded components anywhere under a microscope...
charging is working on both ports, USB thumb & 2.5" external drives is working both ports.
but when i try plugging a Belkin thunderbolt ethernet adapter that is closer to the screen hinge isn't working. however, the top port is working with the thunderbolt ethernet adapter.
same when i use an...
its booted off an external USB drive. cam works fine on another known working board in the same chassis and screen.
its a new osx, I've even made two osx. one without cam.kext out and another one with camera.kext driver.
i don't think its ME region related. but have already tried new clean me...
both boards will boot to macOS if disabled AppleCameraInterface.kext
both boards will boot to macOS if I removed Camera IC (U3900) and enable AppleCameraInterface.kext
I've replaced u3900 on both boards but still stuck on AppleCamIN.
maybe original u3900 was never bad.
any suggestions? bad...
USB3_extra_r2d_p has contunity to c4621
USB3_extra_r2d_n has contunity to c4620
USB3_extra_r2d_c_p has 0.341 on diode reading (same on a known working good board)
USB3_extra_r2d_c_n has 0.341 on diode reading. (same on a known working good board)
USB3_exrta_d2r_p has 0.352 on diode reading...
usb2.0 and usb3.0 not working.
tried flash drives mouse.
5v present on L4605.
5v present on usb port's power pin.
pin 10 - 3.4v
Diode mode on pin 5,6 of J4600
Diode mode on USB_EXTA_P and USB_EXTA_N
i've replaced U4650, its still the same.
USB port looks...