With those three keys held down, press and hold the power button.Hold down the following keys: Control, Option and left Shift.
STREAMING SOFTWARE FOR MAC 2014 HOW TO
Here's how to reset SMC on earlier Mac laptops: After holding those buttons down for 7 seconds, press and hold the power button.Hold down the following keys: Control, Option and right Shift.Here's how to do it on a Mac with a T2 security chip (iMacs from 2020 on, iMac Pro, 2019 Mac Pro, 2018 Mac mini, MacBook Air and Pro from 2018 and later): Resetting your Mac's system management controller (SMC) may also help. Reboot into safe mode may also help you install macOS as it's known to fix the "gateway timed out" or "bad gateway" errors. Release the keys after: two startup sounds or when the Apple logo appears and disappears for the second time.Press and hold Option, Command, P and R immediately after turning your Mac back on.Reset the NVRAM (this can also help with booting issues) That error may be squashed with one of the following solutions. Hold down the power button until your Mac turns off, and then turn power back on.Īs reported by MacRumors, some users got an "An Error Occurred While Installing the Selected Updates" error when they tried to install Big Sur. If you've got a "Setting Up Your Mac" window that just won't go away, our sister site TechRadar advises it's OK to just force a restart of your Mac - as the installation is complete. You can, instead, download macOS Big Sur from the Mac App Store. If something's going wonky in Apple's download servers, you could see proof of it here.Īnd while most will download macOS Big Sur from System Preferences, there's another way that may in fact work better, if you're having trouble with that download process.
Still having problems? On release day, Big Sur installation failure reports were seemingly widespread, as 9to5Mac reported.
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