In a brand new support document, Apple has officially acknowledged issues with macOS Big Sur on older MacBook Pro models and provides steps for how customers may be able to fix it. According to Apple, confirming user reports, installing macOS Big Sur on 2013 or 2014 13-inch MacBook Pro model may yield an error or a blank screen during installation.
For users experiencing the issues, Apple is recommending these following steps:
- Press and hold the power button on your Mac for at least 10 seconds, then release. If your Mac is on, it turns off.
- Unplug all external devices from your Mac, including any displays and USB accessories, and remove any card inserted in the SDXC card slot. Then turn your Mac on.
- If the issue persists, reset the SMC as described for notebook computers with a nonremovable battery.
- If the issue persists, reset NVRAM or PRAM.
- If none of these solutions work, please contact Apple Support for further assistance.
Apple ends the support document by saying it will update the page as more information becomes available. If you are currently having issues with Big Sur’s installation, follow the steps Apple recommends or possibly waiting for an official software patch, likely macOS Big Sur 11.0.2.