Mac Book pro 16 crashing

The new machine is fine, no issues. The first one was sour out of the box.

I have had no crashes for 12 days with the original power savings options.

I have had one report in another thread, where a guy could reproduce the problem (I think he only did step 4 and 5 (disabled/enabled power nap)). He reproduced restart by forcing his MacBook Pro 16 to do a lot of work under sleeping (power napping). He forced a big resync of photo library from iCloud.

I have tried but no restart yet. Will try again tonight.

Does this only happen when it's connected to a power source?... That seems to be the case for me. My MBP only shuts down when connected to power, not when left unplugged. (Not offering a solution here, just trying to narrow down the potential problem/s.)

I know Safe mode but I am wondering if it works in this case. I only don't know if I can but my Mac sleep in this mode. If yes I will try and check what happen. No kernel panic means soft issue related to something I added.

Especially that I found this in my kernel report:

loaded kexts:

com.parallels.kext.netbridge14.1.3 45485

com.parallels.kext.hypervisor14.1.3 45485

com.parallels.kext.vnic14.1.3 45485

Maybe Parallels causes problems. I don't know. after disable power nap and Prevent computer from sleeping automatically when the display is off everything is fine. I can live with that. No brainer as long as issue won't become more and more problematic.

Till Friday I can return my MBP. On the other hand I am worried that I can receive even worst machine with kernel panic during work or problematic Touch Bar

Try the work-around first. They should have given you that when you spoke with them.

If that does not work, you likely have an underlying Hardware problem, in just your sample of the product, so move on to the Return process.

Did you restore anything from TimeMachine or any other backup?

Did you update to 10.15.4?

Gotcha. As I said, I tried every solution I could find, multiple times. I think mine was either a hardware or firmware issue. I turned off auto update (it showed up with 10.15.3), but it updated anyway, but it’s working perfectly well. Luck of the draw.

"Luck of the draw. "

I wouldn't say luck of the draw. I do think there may have been a bad run a few units depending on the geographical area. My 16" MBP has not experienced this issue since I bought in late January. That's great your replacement is working, but I think it was just a bad run off the assembly line of a select few.

i think there’s probably several possible issues with the faulty machines. It was good that mine was bad from the start; I had no issues with returning it and the new one shipped the day I ordered it.

While we are talking about defects ...

Consumer Reports uses the technical term "sample defect" to indicate a problem that shows itself in a single sample of a product, but is not likely to appear in every sample.

Similar to "luck of the draw" but more specific.

True but when Gregory said he got "lucky" I was thinking of it to be that he lucked out and received 1 good model out of 10 bad machines, such as 1 in 10. Pretty sure the ratio isn't that bad but that's how I view things when someone says they got "lucky".

Do you think safe mode try will be same as erase all data? It is my daily work laptop so if safe mode is fine I can check it that way. Other the other hand no power nap is no brainier for me.

There is group of people who have same problem with newest Catalina on older machines so I am not sure if it is hardware issue. I can return it but also I can received much worse

Safe mode disables some key functions so that's not a suitable solution when trying to troubleshoot. Just backup your stuff. I mean you do want this issue resolved right? Turning down options may not be to your benefit.

You know I’ve had success with of the fixes. So you told about return but on the other hand if fixes work keep it.

If it is hardware issue I will return even tomorrow. If it is software it doesn’t matter if it is new or used machine. Bug can appear every time you install new system or update. That’s how it works. People may return their machine and tell “hey the new one works well” but still it could be related to soft. New machine means same soft but different installation process maybe without bug