Recent content by BCConnection

I did check SSD coils. .3-.400 diode. 3v3 G3H was not short as well. Customer chose to pick it up. Unable to continue diagnostic.

Dusty but no signs of liquid One of the CD3215 would go 5V at .09A. Replaced and now all 4 ports give the same readings as far as power draw. 5V @ 340-460mA PPBUS_G3H ramps to 12.14V then down then up every few seconds. No shorts on PPBUS, 3V, 5V and SSD rails When plugged in 3v3 cycling as...

Board came in with short on U7650. Replaced with donor from another board and new chip both result in 5v only on PPBUS_G3H_CHRGR. Not familiar with these board. What to check next?

No just always hit reply when speaking to someone but my bad...

I assumed the lid sensor first, that it may think its not being opened up but the screen works properly otherwise which is why I didnt look at it further. I also didnt have a secondary board to test with so was unable to test if it resolved the issue but the screen would shut off and turn on...

This is my experience on this repair. Not sure of the root cause but this got it going without replacing major parts of the system. Issue: On boot up the Macbook has Trackpad and Keyboard function but if you close the lid it loses Trackpad and Keyboard function. When the Mac is put into sleep...

Still learning the M1 M2 power up process but here is what I checked and found New port Known good Apple Original 61W charger PPVBUS USBC1 5v PPBUS_AON 12.14V PP3V8AON_PH1/PH2/PH3 all 3.747V Poked around PMU found PP5v_BSTLQ_VOUT_MPMU shorted to ground Bad cap Line came up to 2.7V but still no...

a1502 Late 2013 Macbook Pro. Bios is dead. I have the serial but no tools to created a legit bios with matching ME info, Sys, etc. Serial c02mlmg3fh01

Nevermind Louis has them on the site lol

Are "new" chips not programmed? Finding parts boards for these with the ends not cut off is very difficult. I have B03 and this board is C00

Im not overly familiar with how this entire USB system works Liquid damaged board corrosion and burn pad on UB300 and corrosion under UB400. Reballed UB400 and swapped UB300 for good chip. Get 5v at fuse but wont go to 20v. Ive poked around and found a few 3.3v lines but not sure of what all...

Attached should be known good file https://drive.google.com/open?id=1ACfS2aIp0LR_ZXwZljmEeIzKr4ycqSKp

I removed the EFI Lock. Its been installing the OS now for about an hour but says 10 min left. Its running very slow. I assume the ME region is wrong. Where is Duke! lol

I put that on. It had an EFI passcode. I removed it no biggy. Its still running really slow. Starting to think its an issue with the SSD possibly? Although the mouse seems sluggish also so it seems like a Kernel Panic kinda of slowness.

Thank you. Anything helps. I just need to get this thing done so the owner can use it.