Hello, today I would like to share my success in installing Catalina in my T520.
Specs of my T520:
-i7-2640M 2.80GHz Sandy Bridge
-16gb ddr3-1333MHz
-256gb SSD
-Intel HD 3000 + Nvidia NVS4200M (not used)
-Trackpad and keyboard mouse work, and surprisingly multitouch in trackpad also works.
I managed to get it working well enough. Graphics card detected although some small glitches occur here and there.
Bluetooth and wifi work as well as airdrop and airplay.
The T520 has a wifi card that isn't supported by MacOS. Therefore a new Broadband wifi card needs to be installed. I used BCM94352HMB.
But first, a whitelisted bios needs to be installed. First update Bios to 1.49 and then flash the new modded one. (Only works through Windows 7!) <- important
Just make sure you use the Catalina Patcher: https://dosdude1.com/catalina/ to create the installation media.
I'll include my EFI file to download (to use please generate a System Serial Number as there isn't one).
For any questions I am happy to answer.
Specs of my T520:
-i7-2640M 2.80GHz Sandy Bridge
-16gb ddr3-1333MHz
-256gb SSD
-Intel HD 3000 + Nvidia NVS4200M (not used)
-Trackpad and keyboard mouse work, and surprisingly multitouch in trackpad also works.
I managed to get it working well enough. Graphics card detected although some small glitches occur here and there.
Bluetooth and wifi work as well as airdrop and airplay.
The T520 has a wifi card that isn't supported by MacOS. Therefore a new Broadband wifi card needs to be installed. I used BCM94352HMB.
But first, a whitelisted bios needs to be installed. First update Bios to 1.49 and then flash the new modded one. (Only works through Windows 7!) <- important
Just make sure you use the Catalina Patcher: https://dosdude1.com/catalina/ to create the installation media.
I'll include my EFI file to download (to use please generate a System Serial Number as there isn't one).
For any questions I am happy to answer.
