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The crater runs deep, not sure how I could possibly separate the shorted layers. Unless there's something I'm missing, I think I'll probably just have to turn this into a test board.

Yep, thanks for confirming that.

It's 2.5GHz model. In safe mode, everything looks fine. No issues with the screen. This seems like it's just a video chip failure but I wanted to see if there's any other possibilities that I'm not aware of. I attached some pictures. It just flashes this a few times and then restarts.

This was not liquid-damaged. Just stopped recognizing SSD's. Tried a bunch. No change. Any idea what would cause something like this? Not seeing anything off yet.

Crater on the board on pin 1 of C9401. Shorted. Oh well.

Thanks, great information. That trace is fine on my board, but it's good to know for future situations.

You think the CPU would be bad even though the computer is booting normally?

This board had a blown LCD connector from some pretty minor liquid-damage. The backlight pin was black. Replaced the LCD connector. Board boots normally but has no internal video. Screen is known-good with other board. The internal screen is not recognized in System Preferences under Displays...

This was a minor spill. Can't find any corrosion other than on the USB-C connector on the power button side. Lifeboat is connected. Computer turns on and gets stuck at the critical update page, which is expected when it can't find the internal SSD. Any idea where to start with this?

Well, that's better than my success rate so they should feel lucky to have you. Branch out on your own? What country are you in?

Well, they're not easy, so it would be hard to judge someone too harshly for not getting it fixed. It took me forever to get reasonably good at it. I give up after I've cleaned up and replaced everything that had damage from a spill, tested for all necessary voltages (see above, and also make...

The diode readings for the CD3215's compared to a good board are the same. They might still be damaged but they weren't hit directly by the spill. The spill was very minor, just right above UB300 and UB400. I attached a picture of it. The computer does work fully with the other two USB ports...

Amazing find - bad U8510. Pads were charred underneath it. Has 20V and CPU now after cleaning up the pads and replacing U8510. My CD3215's were probably fine the whole time. Thanks so much for getting me there. I really wanted to fix this board so I could test the stack of SSD's I have from all...

I've looked everywhere for shorts and can't find any. U8510 has SMC_RESET_L coming in at 3.4V. BUF_SMC_RESET_L is at 0V.

The other two work and go to 20V and current comes through normally. The two near the spill stay at 5V and cycle on and off completely ever second or so. At first, the top one worked and then when I plugged in the bottom one, it showed 5V and then the top one stopped working and started doing...

Hi, I didn't replace them yet, I just reballed the chips that were on there to see if they might work still. If I replace them can I pull them off any of the MacBook Pros with C00's on them? Also, can I just order and use the C00's from Louis or do I need to program those first? I'll check the...

I've reballed the CD3215 chips with no change. I have PP3V3_G3H. I've looked at everything I can find in the area. The spill wan't too bad, just hit this area a little. R3351 was blown. I replaced that and Q3350 to be safe. R3209 had a charred pad so I cleaned that off and replaced R3209. Not...

DFR_TOUCH_LID is at 0V and SMC_LID is at 3.4V on both boards. Did not reflow U3900 yet. Was trying to rule everything else out first. I don't have an oscilloscope, but DFR_TOUCH_PANEL_DETECT is at .200V on the bad board and 0V on the good board.

DFR_DISP_SMC_RST_L is present at 3.4V on the bad board, same as good board. DFR_DISP_RST_L is missing on bad board. Should be 1.8V PP1V8_S0 is present on pin 6 at 1.8V on both boards Diode measurements are the same on all of the lines connecting to U4406.

Yes, my mistake, pin 3. It looks like you might be getting to the issue. DFR_DISP_RESET_L is missing from the bad board. Bad Board 1 DFR_DISP_RESET_L - 0V 2 DFR_TOUCH_RESET_L - always 1.8V 3 DFR_CLKIN_RESET_L - .110V up to .250V 4 DFR_TOUCH_INT_L - .110V up to .250V It...