MacBook Pro 16 2019 10.15.4 Kernel Panic / Reboot When Plugged In -- Help!

Please try to disable Power Nap (pluged in and batteries) in the power save options.

It works for many of us.

Actually it still works when you enable the Power Nap again afterwards. It seems to be the disable/enable that correct a wrong setting on the NVRAM.

My story: got my MacBook Pro 16” in start april. Upgraded to 10.15.4. Every time it went to sleep it crashed. Solved the problem with the power nap thing. Did not have any problems for 7 weeks. Upgradede to 10.15.5. Problem started again. Did the disable/enable power nap again and the problem went away.

I have reported this “fix” to Apple.

I've experienced the same problem with my 16" MBP on 10.15.5 and even the latest 10.15.5 patch doesn't solve it. Disabling power nap I still experience kernel panics often (weekly), esp in times of high graphics usage like during a video call or streaming video. I have called applecare 8+ times, sent my machine in for evaluation and they sent it back claiming "no problem was found". Apple has been unable to fix it unfortunately and censors my posts on this forum for "non-constructive rants or complaints".

I specifically did not buy this in it's launch assuming apple would've fixed all issues by then.

Not just that, I had multiple minor issues, bugs that frequently kept annoying me. Maybe it's just me and the softwares I use as a 10 year Windows user and I admit mac os was superior on smoothness and ease of use, but it has a lot of bugs and little disturbances that annoys me.

Let's see how new XPS 17 holds up, I am still thinking re-buying macbook if that doesn't work out well, since despite those issues it was the best laptop I think is available, untill I heard about recent dell announcement with 4 TB3 ports (I am fan of those ports)

BTW,

Yes my issues was fixed (at least 2 weeks with no issues) on 10.15.5 , my annoyance is just for lots of minor issues that just built up over time,

Maybe it's Catalina (as many say), I don't know, but I heard good things about apple but all I got was mess.

I got my MacBook Pro 16" four days ago. I updated to 10.15.5 on day one, so that is not the issue. So far each night I have had the same crash everyone else here has. I have my MacBook Pro connected to an external display, external speakers, a thunderbolt 2 to 3 adapter, and a dongle so I can connect old USB devices. I close the lid at night and each morning I wake to find that it had shut itself down. I have to start it up again, and I see that error report. Yesterday I disabled "Power nap" and "Prevent computer from sleeping automatically..." but that did not solve my problem; it still crashed and shut itself off. Today I did an SMC reset, and will find out if that helped.

I had saved a few hundred bucks purchasing it from with B&H. They said they would replace it but I'd have to send the other one in first. On the phone with Apple, the guy said he hadn't heard of the issue. I thought to myself, "REALLY?!" How could he have not heard of it? And he, too, suggested that the best thing to do would be to get a replacement. But I'm reading here, and elsewhere, that the replacement could have the same issue! So I don't know what the heck to do. I guess I'll just wait a couple more days and see. But yeah, this is so frustrating. These machines are not cheap. They should definitely work perfectly straight out of the box, and for many years thereafter.

I decided to return mine after 1.5 months of purchase & use. It was good while it worked, but consistently had issues like blue screen and unexpected crashes.

Tried reinstalling OS, resetting SMC and other options. Nothing helped. The laptop is just sitting in my closet at this point collecting dust because it won't boot up.

Did you return it or keep it?

I will be returning it. In the post, I said I have "decided to return."

I called the support team and will be sending mine in. But right now, yes, it is in the closet collecting dust.

I'm not entirely sure, but I have a history of calls with them regarding this issue, and tried everything they've asked me to do, to no avail. After multiple call transfers, I was given the "okay" for a refund.

I've got it narrowed down to the fact that mine only seems to crash when it's connected to my external HDMI display. Also I've been noticing, even as I type here, that my keyboard it weird. The cursor seems to jump around, and there are times when it closes me out of the text window on its own. So, one answer is to make sure I don't have anything connected to the laptop when it sleeps, but even this is ridiculous. There shouldn't be any such problem whatsoever. I think I might go ahead and try getting a replacement. Anyone at all had any luck with a replacement? It seems people still report the same issue anyway.

Having exactly the same issues with 16 inch i9 MBP when waking from sleep. Highly irritating as I was relying on using this laptop predominantly in clamshell mode. I'm using a U-Green USB-C adapter 6 in 1 with UBB-C passthrough charging also connected to a Dell U2515H display. If the laptop sleeps for more than a few minutes whilst connected to my external monitor then it reliably crashes on waking. Hugely irritating for this to happen on a machine that costs over £3K. These kind of bugs seem to be more common with Mac OS and they seem totally uninterested in fixing it. Attaching an external monitor to me seems a very common use-case for these machines.

Most definitely a frustrating issue considering the price of those machines but seeing that several people are affected and that I'm getting weekly updates from Apple about the progress of the engineers on this issue I'm hoping that they are invested in solving this as quickly as possible. My worry is what if they can't solve it, what recourse do we have? They insist on the fact that it's a software issue but they also have an incentive to tell us that (and a bad track record in admitting their mistakes), replacing that many machines because of a hardware issue would be pretty costly I imagine.

For now I've been using triggers in Amphetamine that if an external screen is connected prevents the MBP to go to sleep. It's not ideal but it's a decent workaround.

This was an issue at least since MacOS 10.15.4 and the problem got even worse in 10.15.6 public beta 2!!! I regularly do not use beta versions but as I was so frustrated with the frequent kernel panics in 10.15.4 and 10.15.5 that I decided to try the latest beta. But don't expect anything to change!

As I cannot work with a device that panics 4-5 times at a normal working day I decided to use my Lenovo Yoga 710 with Windows 10, 1909. With this device I did not have a blue screen for many, many years.

I tried hard many month and I am considered, hired and paid as an IT expert but I gave up with this operating system. Now I am giving up.

BTW: See the opinion of Forbes Magazine: Apple's MacBook Pro Has A Serious Problem - Forbeswww.forbes.com › 2020/06/18 › a...

I've done all the recommended things to fix the issue. None have worked. This includes resetting SMC; resetting NVRAM; reinstalling iOS 10.15.5; erasing the drive and reinstalling 10.15.5 yet again; as well as disabling Power Nap, and playing with the energy saver settings. It doesn't matter what you do to your MacBook Pro 16, it's going to crash when you have a USB hub connected to, and you shut the lid. Initially, it seemed a lot of us thought it had something to do with an external display, but that is not the case. You can have your USB hub connected to the computer, with nothing going into it, and the computer will still crash after you shut the lid and it goes to sleep.

After reaching out to Apple several times, I was finally transferred to a senior manager. She told me they are definitely aware of the problem, and that hopefully one of the next couple iOS updates will correct it. It is assumed by everyone to be a software issue. I had been considering getting a replacement, but, considering it's a software issue, there is no way they can guarantee that a new one won't have the same problems.

So, until they fix it in a later iOS update, we have to employ workarounds--even though they could be annoying. This means making sure you disconnect your USB hubs before shutting the lid to the laptop. It means unplugging the charging cable before letting the computer sleep. The woman I spoke to even suggested manually shutting the computer down each night. It's pretty stupid that we have to deal with nonsense after spending all that money on a new computer. But it doesn't look like there's anything you can do about it for now. It's a bummer.

Did everybody just also kind of gave up on their 16" Macbook like i did ?

This thread is quiet and my computer only got worst with the updates . Doesnt matter what i turn off on power settings.

Did you guys have a solid 100% work around for this. I can turn anything off, i dont care i just wanna be able to close my macbook's lid and open it and be able to continue working from where i left .

Rant; As on my first reply to this thread that got deleted a senior advisor from apple because this macbook 16inch was a replacement for my 2019 15inch macbook she did NOT let me return this computer and transfered me to costumer relation department where they denied me return with the the 14 days, and i pretty much have an unreliable computer that i find my self using my 13inch macbook pro i5/8gb/256ssd over this i9/64gb/1tb/5500M . This is unbelievable . I got so much money tied to this computer and for having had my 15inch replaced apple is gonna think i am the problem not their computers, but really, i just dont use this could be good computer. Im using a greased up 13inch i5 macbook over this .

Mine started working flawlessly after a combination of disabling and re-enabling Powernap, clearing the SMC, and updating to 10.15.5. I haven’t had a single issue with my machine in over a month now. Knock on wood and fingers crossed.

I hope you get yours sorted out as well.

Oh and I’m connected 99% of the time to a CalDigit TS3+ Thunderbolt 3 dock with 4 USB-A peripherals and a DisplayPort connected 27” 4K Dell Display.