thanks to dosdude1 for creating this patch
Step 1 : Click HERE to download the Patch Tool
Step 2: Follow this video
This Patch will work with the following machines.
- Early-2008 or newer Mac Pro, iMac, or MacBook Pro:
- MacPro3,1
- MacPro4,1
- MacPro5,1
- iMac8,1
- iMac9,1
- iMac10,x
- iMac11,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.)
- iMac12,x (systems with AMD Radeon HD 5xxx and 6xxx series GPUs will be almost unusable when running Catalina.)
- MacBookPro4,1
- MacBookPro5,x
- MacBookPro6,x
- MacBookPro7,x
- MacBookPro8,x
- Early-2008 or newer Mac Pro, iMac, or MacBook Pro:
- Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:
- MacBookAir2,1
- MacBookAir3,x
- MacBookAir4,x
- MacBook5,1
- Late-2008 or newer MacBook Air or Aluminum Unibody MacBook:
- Early-2009 or newer Mac Mini or white MacBook:
- Macmini3,1
- Macmini4,1
- Macmini5,x (systems with AMD Radeon HD 6xxx series GPUs will be almost unusable when running Catalina.)
- MacBook5,2
- MacBook6,1
- MacBook7,1
- Early-2009 or newer Mac Mini or white MacBook:
- Early-2008 or newer Xserve:
- Xserve2,1
- Xserve3,1
Machines that ARE NOT supported:
- 2006-2007 Mac Pros, iMacs, MacBook Pros, and Mac Minis:
- MacPro1,1
- MacPro2,1
- iMac4,1
- iMac5,x
- iMac6,1
- iMac7,1
- MacBookPro1,1
- MacBookPro2,1
- MacBookPro3,1
- Macmini1,1
- Macmini2,1
- 2006-2007 Mac Pros, iMacs, MacBook Pros, and Mac Minis:
- — The 2007 iMac 7,1 is compatible if the CPU is upgraded to a Penryn-based Core 2 Duo, such as a T9300.
- 2006-2008 MacBooks:
- MacBook1,1
- MacBook2,1
- MacBook3,1
- MacBook4,1
- 2006-2008 MacBooks:
- 2008 MacBook Air (MacBookAir 1,1)
- AMD/ATI Radeon HD 5xxx and 6xxx series graphics acceleration: Currently, it is not possible to achieve full graphics acceleration under Catalina on any machines that use a Radeon HD 5xxx or 6xxx series GPU. 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 acceleration will result in extremely poor system performance.
- 2008 Mac Pro 3,1 AMD GPU Support: FIXED as of Catalina Patcher 1.2.0.