Apple launched the latest generation of computer operating system macOS Big Sur earlier. The new system adopts an interface design style similar to iPadOS and has added a number of improvements. However, recently some users have said that some devices have become bricked during the upgrade and cannot be used. Need to go to Genius bar for inspection and repair.
Some users on the Internet said that the 13-inch MacBook Pro products from the end of 2013 to mid-2014 showed a black screen after upgrading to Big Sur, and resetting the NVRAM would not solve the problem. Apple has not yet made an official response, so you will be worried about whether the device will If it doesn’t work well, you need to think twice about whether to upgrade to the latest system.
Apple’s first macOS Big Sur, because of the short launch time and the need for ARM-compatible design, the development completion rate must be lower than the previous generation version. If you don’t need the latest version of the system too much, you should wait for most updates.