WARNING macOS Catalina 10.15.4 Supplemental Update BRICKED my 13 inch Macbook 2018!

skardvin

macrumors newbie
Original poster
Nov 15, 2015
5
1
I attempted to install the update but about halfway through my computer shutdown and it bricked my 2018 13 inch MacBook. I waited two hours then attempted to power on my computer. However, there was no power, no fans coming on and off or anything when pressing and holding the power button. It was plugged and fully charged while updating. Anyone else having this problem? Also attempted to do a SMC reset to no avail still won't turn on. I am sending it in for repair. I would hold off updating unless you want to risk losing your computer for a week.
 
Last edited:

skardvin

macrumors newbie
Original poster
Nov 15, 2015
5
1
I guess I am not alone in this update bricking my computer. chevs10zr2 posted this in the comment section on 9to5mac.com here is what he said, "Went to go update, and it just bricked my 2018 15 in MacBook. No power, no fans coming on and off or anything when pressing and holding power button. Plugged in with Apple cord and brick and everything and was fully charged when it went to update. Weird."

 

fisherking

macrumors 604
Jul 16, 2010
7,193
2,136
ny somewhere
I attempted to install the update but about halfway through my computer shutdown and it bricked my 2018 13 inch MacBook. No power, no fans coming on and off or anything when pressing and holding the power button. It was plugged and fully charged while updating. Anyone else having this problem? Also attempted to do a SMC reset to no avail still won't turn on. I am sending it in for repair. I would hold off updating unless you want to risk losing your computer for a week.
you could not boot into recovery, or internet recovery? no power at all? try a few other things first, perhaps, before you send it in for repair (or call apple...). good luck!
 
Last edited:

gr82cu

macrumors newbie
Apr 9, 2020
1
0
Same just happened to me. 2019 Macbook Pro. Download...Preparing...Restarting - not! No sound, black screen. Charger is definitely working.
 

radamo

macrumors member
Dec 5, 2019
61
24
Long Island, NY
Installing on my 2019 iMac 27. Taking a VERY long time to install. But it is moving now. Will update when complete. Fingers crossed.
 

radamo

macrumors member
Dec 5, 2019
61
24
Long Island, NY
Supplemental update took about 25 minutes to complete on my iMac... WOW... Must have been a lot of thing that got updated with that one... Looked frozen a few times during the update but did complete normally. All seems to be okay now.
 

skardvin

macrumors newbie
Original poster
Nov 15, 2015
5
1
you could not boot into recovery, or internet recovery? no power at all? try a few other things first, perhaps, before you send it in for repair (or call apple...). good luck!
No power at all. I tried SMC and PRAM reset but sadly was unable to do either since my computer won’t even turn on.
 

me55

macrumors member
Jul 26, 2019
84
21
My 2018 15" installed the update without issues. Seems to recognize plugged in USB things instantly now, last update slowed that down a bit (plug in, 2 sec. nothing, then the system recognized USB drive/...).
 
  • Like
Reactions: jbachandouris

chrfr

macrumors G3
Jul 11, 2009
9,677
3,529
I updated 2 2012 Minis, a 2019 16" MBP, a 2018 13" MBP, and a 2017 13" non-touchbar MBP, all without any issues, fortunately.
 
  • Like
Reactions: fricotin

MLandesman

macrumors newbie
Sep 19, 2018
1
0
Same on a 2019 MBP 13 Touch Bar (A1989). Guess we are all awaiting a callback from Apple Support. Even tried disconnecting the battery and reconnecting, still no power at all. Impressive for an OS update.
 

thadoggfather

macrumors G4
Oct 1, 2007
11,777
9,135
definitely not updating my 2020 air that's on 10.15.3

sorry to hear this! apple software QC is such a Wild crapshoot. its unbelievable not just limited to any one release
 

robots3humans0

macrumors 6502
Sep 22, 2009
416
26
London, Ontario
I updated my 2020 MBA without issues. It did seem to take quite a while. Even looked like the MBA was off for a bit but eventually it booted itself and all was well.
 
Last edited:
  • Like
Reactions: radamo

ProTruckDriver

macrumors regular
Jul 28, 2016
183
247
Virginia
I haven't updated to V 10.15.4 yet. Looking at all these bugs I believe I'll stay where I'm at now V 10.15.3 where everything is working fine.
Doesn't Apple test these updates before releasing them? Apple is sounding more and more like Microsoft with bad updates.
 
  • Like
Reactions: makitango

chscag

macrumors 68040
Feb 17, 2008
3,737
1,293
Fort Worth, Texas
The supplemental update did take much longer than it should have. And several times during the update process the screen went black and appeared to have shut down. But eventually it started up again. That whole process was worse than some firmware updates I have done before. However, now everything is okay and up and running on my iMac.
 

jwhittaker

macrumors newbie
Jul 16, 2007
26
7
RI
I had problems with the last update a few days ago and my 2017 MacBook pro would shut down when battery hit 14% and would not start until it was charged more. I reset smc, pram finally reinstalled macOS from recovery no problems since. Also did todays supplemental and no problem.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.