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Yes, I have a good board I'm comparing it to. That board has 1.8V on DFR_TOUCH_INT_L. It's sitting on my desk with nothing plugged into it. The bad board has .18V. The diode measurement on DFR_TOUCH_INT_L is fine at .484 on the bad board. It's hard for me to understand where the 1.8V comes from...

I just realized we didn't get rid of this yet so it's still here. I found out that DFR_TOUCH_INT_L is measuring .18V and it should be 1.8V. Everything else is measuring fine on J4402 including PP1V8_S0SW_DFR at 1.8V. Not sure what's causing DFR_TOUCH_INT_L to be at .18V, which happens to be the...

Yes, I did all of it. Our network is very simple, just a basic setup but I did verify that I was able to access everything on that Apple page by wifi and then also by ethernet when I tried connecting with ethernet only. All of those connections were tested on those ports. I still believe this is...

I had to let this one go, but I did have internet fine through wifi and ethernet when I was booted into the system.

I always boot into a USB test drive when testing so I'm thinking that would avoid any issues with traffic blockers. Either way, I did boot into the system with safe mode and wiped the internal SSD so there's nothing left there. Clean install changed nothing. Ethernet connection didn't change...

Thanks for the tip. Good to know.

Ok, thanks, I tried reflowing the SMC and cleaning up anything else I could find but it was still not spinning up properly. I'll just sell it as-is rather than spend the time swapping an SMC. For the record, it didn't have a lock. I had done a PRAM reset with no change. Once I have someone...

This board had some liquid damage in the usual U1950 area and over to the SMC area. Nothing crazy, just cleaned it up and replaced some components. It appears to be working normally and passed ASD but when it starts up it doesn't do the fan up and down 3 times, it just spins up and works like a...

Light spill. I attached pictures of the only area that was hit. I cleaned this up. (I had to replace a resistor under the metal shielding on the actual Touch Bar cable. That works fine now with my test board.) Board takes about 15 seconds to post and is booting to the Critical Update screen. I...

Yes, for sure. This one is for a friend of mine who is desperately trying to recover his data so I was hoping to get it going for him. But in general, like many of the new ones, these seem like a waste of time.

Ahhh, I was hoping this might be the one that got fixed. Silly. All voltages are coming up. So is this just a variation on the CPU being dead?

This board is cycling. PPVCC_S0_CPU cycling every 2 seconds or so. PPBUS is stable at 8.7V. USB-C is at 20V. It isn't a spill. I can't find any shorts. PPVCC_S0_CPU is at 80 Ohms to ground. Any thoughts on where to go next with this?

So the other one arrived today and it's actually cycling with PPVCC_S0_CPU cycling every 2 seconds or so. PPBUS is stable at 8.7V. USB-C is at 20V. It isn't a spill. I can't find any shorts. PPVCC_S0_CPU is at 80 Ohms to ground. Any thoughts on where to go next with this?

Yeah, I pulled it and found a tiny tear under the microscope. I couldn't see it normally. This came into us with a bunch of screws and connectors missing. Not surprising that it was damaged. Thanks for the help getting this figured out.

Ok, got it, yes, thanks, that does turn it off. So you think the Touch ID/power button needs to be replaced then?

Yes, 3.3V was on SMC_ONOFF_L. 3.3V is also on PM_PWRBTN_L. PM_PWRBTN_L is going low though when I trigger the R5225/26 pads.

That's not turning it off. Tried many times with different tweezers just to make sure I was making good contact. Does nothing.

Ok, thanks, hopefully the next one is different, but I have very little hope.

So this hasn't arrived yet, but I got another one in just now with the exact same issue. Pulls in 20V and 1.35A but isn't turning on. Gets warm, has CPU at 1.7V responds to SMC-reset but isn't turning on. I'm assuming hopeless? Dead CPU? U4700 issue would be completely dead, no CPU, no heat, no 20V?

This board had some light spill damage on the right side of the board (looking at it from the bottom) so it wasn't anywhere near the power button on the left, but I'm getting nothing out of the power button. It has the click so mechanically it seems fine, but it does nothing at any time. No...