On November 12, the update MacOs Big Sur was available for Macs and MacBook. Coinciding with the launch of the new 13-inch MacBook Pro, MacBook Air and Mac mini which each use Apple’s M1 chip, the latter come with this new operating system previously installed.
Also available for older Macs and MacBooks, this system update should have been great news for users, but the story is ultimately a bit more complex considering that it brought its share of problems. We’ll walk you through the main ones and help you get around them if you are faced with them.
A fatal bug for some computers
Presented by the Apple brand as the most revolutionary update to its operating system, MacOs Big Sur brings a batch of changes so important that it leaves behind version 10.x of MacOs (as well as all existing versions since MacOs X 10.0 Cheetah released in 2001) to become MacOS 11. The story could have ended there, but unfortunately it is not. Some users have indeed had the very unpleasant surprise of seeing their machine become totally unusable while trying to install the new OS. These include some old MacBook Pro Circa 2013 and 2014.
Apple himself recognized in a few days the presence of an installation problem on these categories of MacBook Pro which see their screen go black during the update installation process or display a forbidden icon 🚫.
If you are facing this problem, the manufacturer recommends following the following steps:
- Press and hold the Mac’s power button for at least ten seconds, then release it. If your Mac was on, it will turn off.
- Unplug all external devices (SDXC cards, USB accessories, monitors) and turn the Mac back on.
- If the problem persists, Apple offers to reset the SMC by following this procedure or attempt to reset NVRAM or PRAM (procedure).
If none of these solutions work, your best bet will be to turn to the manufacturer or to go here if really any attempt turns out to be unsuccessful.
The most common Big Sur update issues
Before considering any problem correction, it is first of all important to verify that your old Mac or MacBook is compatible with the Big Sur update. Apple no longer supports some older Mac models that run MacOs Catalina, here is the full list of compatible devices:
- MacBook (2015 or later)
- MacBook Air (2013 or later)
- MacBook Pro (2013 or later, beware, some devices do not support the update as seen above)
- Mac Pro (2013 or later)
- Mac Mini (2014 or later)
- iMac (2014 or later)
- iMac Pro (2017 or later).
While the installation itself is not problematic, as with any major update to an operating system, problems can occur. Here we will come back to the most common problems that users have seen with MacOs 11.
Download does not work
The MAJ MacOs Big Sur being a operating system, with its 12GB, this one is very bulky. It will therefore be normal to have to wait longer than usual for it to download. However, if you find that the download stops completely or takes several hours, you may need to intervene by trying one of the following solutions:
- Make sure you have a fast and reliable internet connection.
- Check if the Apple servers are functional by going to this page (it is possible that in case of strong demand the server is responsible for the failure of the download).
- Check that you have enough disk space on your Mac or MacBook (minimum 16 GB). If not, see here how to recover space without taking the risk of losing important system files.
Correct the error “Gateway timed out”
If during the download of the Big Sur update it has stopped and the system indicates the error “Gateway expired” (Gateway timed out) or incorrect gateway (Bad gateway), try restarting your Mac in Safe Mode by holding down Shift button pressed during the reboot phase and then retry the installation process.
If this method does not work, try resetting the NVRAM by shutting down your Mac> press Option + Command + P + R for 20 seconds> The Mac restarts> Retry the MacOs Big Sur installation.
If your computer uses the security chip T2 (to check this information go to the Apple menu> About this Mac> System Report> Controller), you will probably have to reset SMC by shutting down the MacBook> keeping the cable, hold Shift + Ctrl + Option for 7 seconds> Keep them keys and keep the power button pressed for another 7 seconds> Restart the machine.
If your desktop Mac has the T2 chip, shut it down> remove the power cord, wait 15 seconds and plug it back in> Wait 15 seconds> Restart.
Applications do not launch or are too slow at startup
Many users have noticed, after updating MacOs Big Sur, slowdowns of applications (non-Apple) but also sometimes the inability to open them.
This problem which was caused by the overwhelmed Apple servers has apparently been resolved. If you still find yourself experiencing slowdown issues, check your login items or your system clutter.
Connection problems since installing the Big Sur update
If you notice connection problems on your Mac or MacBook since downloading the MacOs 11 update, restart it by holding down the Command + S keys on the keyboard during the restart phase. On the command prompt that will boot, enter this:
/ sbin / mount -uw / and press Enter. Then enter this: rm /var/db/.applesetupdone and press enter then restart.
The mouse has stopped working after installing the update
If you encounter this issue, open the ~ / Library / Preferences / directory in Finder> Select and delete the following files:
Restart your machine to make your mouse work again.
Problems with Bluetooth
This issue became common on Apple computers after installing the update. To solve it, press Shift + Option> Click on the Bluetooth icon in the menu bar> Select Reset Bluetooth module> Ok> Restart your machine.
The menu bar has disappeared
This can happen but fortunately it is very easy to correct: go to System Preferences> Users & Groups> Connection options> enter your Admin password> deactivate the option “Show the quick user change menu” > the menu bar is back> go back to System Preferences and select Dock & Menu Bar> Turn off fast user switching.
So much for common issues since the macOs Big Sur operating system update. And you, have you been confronted with this type of problem since its download? And if you ever need a new one MacBook, think of the reconditioned!