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Replaced D4610 and BAM, I have my USB working now. The other USB was fine. Should I re-ultrasonic or will I harm the board? Thank you for your help, Duke!

I am using a genuine magsafe 85W. I replaced L4610, measured for short to ground on all for pins, they're all OK. Plugging in a mouse does nothing, but when I unplug it red light flashes for a second and I confirmed with a multimeter, I get 5V. Something wrong with the MCP I guess... Will I harm...

Took another U6915 from a board with green light but bad GPU and I have a green light ! ! ! Should I proceed in this post to solve the original problem of the board that was 1 bad USB, or should I open a new post? Also, should I ultrasonic the board again to get rid of the flux in that area or...

Replaced U6915, got exactly the same values on all pins. Could the donor be bad, should I try with another donor chip from 820-2327 or could it be something else?

Thank you, Duke. I'll replace U6915 and get back

Duke, an early bird, aren't you? U6915 pin4 is 7.32V, on healthy it is 0V. Also, pin3 is 0V, on healthy it is 3.29V

Hello, new member from Greece and an absolute beginner. Thank you Louis, Duke, and the rest of the board for making this forum available to the world. I bought a complete Macbook Pro 15 late 2008 cheap on ebay with one USB not working. Measured around, replaced Q4690, nothing. C4616 was...