Is it true that Big Sur can brick your MacBook?

[adib]

My late 2018 MacBook Air was completely bricked by upgrading to Big Sur. Apple Genius Bar and support didn't help at all. I had to buy a new laptop. Very disappointing. They claim it screwed up the logic board. They required a $500 payment just to send it in. I tried everything with no luck. Apple screwed me.

Try reviving or restoring its firmware. Sometimes (more often), an Apple Genius isn't so genius after all.

 

[MalagLagoon]

My late 2018 MacBook Air was completely bricked by upgrading to Big Sur. Apple Genius Bar and support didn't help at all. I had to buy a new laptop. Very disappointing. They claim it screwed up the logic board. They required a $500 payment just to send it in. I tried everything with no luck. Apple screwed me.

That's horrible. I don't trust Apple anymore.

 

[Apple_Robert]

That's horrible. I don't trust Apple anymore.

An intermittent and unforeseen problem can and does happen on any OS, especially with an upgrade. I don't see this as a widespread problem. And I don't think one needs to be overly worried about it.

 

[incline design group]

I posted a thread a couple weeks ago about BigSur bricking the battery of my 2018 MBPro—this is now a fancy desktop machine. Unfortunately downgrading etc has not helped because it looks like a firmware update was pushed to the (battery that rendered it useless [as a sidetone, a little over a month ago that battery had a 90%'ish battery health], and reinstalling/clean-reinstalling past systems haven't forced a reinstall of the old battery firmware.

For everyone saying this is fake news above, check out the developer forum thread linked in my original post. There are hundreds of posts on this. Waiting patiently for Apple to acknowledge this and/or push a new battery firmware update.

Big Sur = Dead MacBook Pro Battery

Hey everyone—it seems that last week after upgrading my 2018 13" Touchbar MacBook Pro my battery failed. I wasn't even able to start the computer for 2 days because I would only get the red battery drained icon despite it being plugged in. It was so soon after the OS update that I was...

forums.macrumors.com

 

[LFC2020]

I've got a 2015 Mac Book Pro running Mojave. I have no interest in upgrading the operating system because I need to run the following command (using terminal) several times a day to prevent accidental and unwanted macOS upgrades to Catalina:

sudo softwareupdate --ignore "macOS Catalina"
defaults write com.apple.systempreferences AttentionPrefBundleIDs 0
killall Dock

And it sounds like future operating systems will not allow the above commands to work - therefore, I have zero interest using anything beyond Mojave.

Now I hear that Big Sur is destroying perfectly good laptops by corrupting firmware. Is that really true? Damn. Just, damn - that's whacked.

Only if you throw a brick at it. 🧱💻