I recently had to re-install the original OS from the discs that came with my MacBook Pro. This installed Snow Leopard and software updates have taken it to 10.6.8. However it refuses to upgrade to Lion, Mountain Lion or Mavericks. (I've tried them all a few times). I have repaired permissions and checked the HD is OK (which it is). The only known way – that is: with software alone – to get a 2011 MacBook Pro (8,2) with 'only' a failed AMD graphics chip to almost reliably turn on again and boot into macOS and be quite useable with an accelerated GUI is this guide or a variation of it. This work-a-round has lasted through an upgrade from Mac OS Sierra to High Sierra. Yes it will take Sierra. You need a friend on an updated Mac to download the install onto a USB external flash bootable drive. MacBook Pro 15' Unibody Early 2011.
Check compatibility
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Pc piano software free. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space. Play keno for free.
Macbook Pro 2011 Os Sierra Os
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with macOS Sierra, the installer will let you know.
Make a backup
Mystical mermaid free slots. Before installing any upgrade, it's a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Sierra
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.
If you still need macOS Sierra, use this link: Download macOS Sierra. A file named InstallOS.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallOS.pkg.
Electric guitar design software free download. Follow the onscreen instructions, which will guide you through the steps necessary to install.
Begin installation
Macbook Rumors
Update my macbook air os. After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install macOS Sierra.
Macbook Pro 2011 Os Sierra 10.12
https://bestgfiles124.weebly.com/1999-suzuki-dt-140-repair-manual.html. Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Learn more
Macbook Pro 2011 Os Sierra Pro
- If you have hardware or software that isn't compatible with macOS Sierra, you might be able to install the previous version, OS X El Capitan.
- macOS Sierra won't install on top of a later version of macOS, but you can erase your disk first or install on another disk.
- You can use macOS Recovery to reinstall macOS.
