• If you have a machine with one of these GPUs installed, I'd advise upgrading it if possible (can be done in 2010/2011 iMacs, iMac11,x-12,x), disabling the dedicated GPU if using a 2011 15' or 17' MacBook Pro (MacBookPro8,2/8,3, instructions to do so can be found here), or not installing Catalina. Running Catalina without full graphics.
• This update comes with a set of bug fixes for FaceTime, Bluetooth, and more. March 24, 2020: Apple releases iOS 13.4. Apple has released iOS 13.4 for the iPhone. This update features new Memoji stickers, iCloud Drive folder sharing, new controls in the Mail app, support for third-party navigation apps in the CarPlay dashboard, and more.
• Macs don't have BIOS. They use Open Firmware (EFI and UEFI) to boot up. Boot into Open Firmware. Shut down your Mac. Start it up while holding down the Command, Option, O and F keys (command option o f). You will now have a command line promp.

Technical specifications for the MacBook Pro 15-Inch 'Core i7' 2.2 Late 2011. Dates sold, processor type, memory info, hard drive details, price and more. 13-inch MacBook Pro (non Touch Bar) Battery Replacement Program April 20, 2018. IPhone 7 Repair Program for 'No Service' Issues February 2, 2018.

iPhone 11 Display Module Replacement Program for Touch Issues
December 04, 2020

AirPods Pro Service Program for Sound Issues
October 30, 2020

iPad Air (3rd generation) Service Program for Blank Screen Issue
March 6, 2020

Smart Battery Case Replacement Program for iPhone XS, iPhone XS Max, and iPhone XR
January 10, 2020

iPhone 6s and iPhone 6s Plus Service Program for No Power Issues
October 04, 2019

Screen Replacement Program for Aluminum Models of Apple Watch Series 2 and Series 3
August 30, 2019

15-inch MacBook Pro Battery Recall Program
June 20, 2019

Keyboard Service Program for MacBook, MacBook Air, and MacBook Pro
May 21, 2019

13-inch MacBook Pro Display Backlight Service Program
May 21, 2019

Apple Three-prong AC Wall Plug Adapter Recall Program
April 25, 2019

13-inch MacBook Pro (non Touch Bar) Solid-State Drive Service Program
November 9, 2018

iPhone X Display Module Replacement Program for Touch Issues
November 9, 2018

iPhone 8 Logic Board Replacement Program
August 31, 2018

13-inch MacBook Pro (non Touch Bar) Battery Replacement Program
April 20, 2018

iPhone 7 Repair Program for 'No Service' Issues
February 2, 2018

Firmware Update For Macbook Pro Early 2011

Multi-Touch Repair Program for iPhone 6 Plus
November 17, 2016

Apple AC Wall Plug Adapter Recall Program
January 28, 2016

Macbook Pro Early 2011 Firmware Update Windows 10

Apple 5W European USB Power Adapter Exchange Program
June 13, 2014

Macbook Pro Early 2011 Firmware Update Windows 7

Apple Ultracompact USB Power Adapter Exchange Program
September 20, 2008