Skip to Content

Wiki source code of Apple

Version 5.1 by Drunk Monkey on 2021-11-03 08:34
Show last authors
1 {{toc numbered="true" start="2"/}}
2
3 == Downgrade Big Sur (11.x) to Catalina (10.15) ==
4
5 1. download the Catalina installer for 10.15 ( [[https:~~/~~/support.apple.com/en-in/HT201372>>https://support.apple.com/en-in/HT201372]] ) from the apple app store (8GB). After downloading, the OS will try to run the installer and fail giving an error message. Just dismiss the dialog window and continue on.
6 1. "createinstallmedia" via the terminal window:
7 11. ##sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia ~-~-volume /Volumes/MyVolume##
8
9 == Disable MacBook Pro Dedicated GPU ==
10
11
12 Important Notes:
13
14 * I have recently come up with a MUCH better, PERMANENT solution to this issue, which I'd recommend using instead, if your AMD GPU has failed. This method will also allow brightness control and sleep mode to continue working as normal. More info can be found [[here>>url:https://doslabelectronics.com/Demux]].
15 * After performing the steps below, sleep mode and brightness control will NOT work properly on your system.
16
17 1. First, ensure your machine is completely shut down (You can press Control + Option + Shift + Power keys to reset the SMC).
18 1. Now, boot your machine while holding the Command + S keys. As the system boots, it should display white text on a black screen, and should eventually stop at a prompt.
19 1. At this prompt, enter the following command and press Return: 
20 ##nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00##
21 1. Next, enter reboot,  and press Return.
22 1. Immediately after running the reboot command, hold down Command + R (if you're running OS X 10.11 or later) to boot into Recovery Mode. If you don't have a Recovery Partition, you can boot from a Mac OS installer USB drive.
23 1. Once booted in Recovery Mode, open Terminal, and run the following command:
24 ##csrutil disable##
25 1. Reboot the system.
26 1. Once the system reboots, it should now successfully boot into your install of OS X. Now, you'll need to download the program found [[here>>url:http://dosdude1.com/apps/MacBook%20Pro%20dGPU%20Disabler.zip]].
27 1. Run the program, follow the prompts, and enter your password when prompted.
28 1. Once the tool finishes running, your system should now run without the dedicated graphics, and should work completely normally.
29
30 == Essential Keyboard Shortcuts for Mac ==
31
32 (% class="min" %)
33 |=Shortcut|=Action
34 |**Startup Shortcuts**|
35 |C|Boot from Optical Drive
36 |D|Boot to Apple Diagnostics
37 |N|Boot from a network server
38 |T|Boot in Target Disk Mode
39 |Shift|Boot in Safe Mode
40 |Cmd + R|Boot to macOS Recovery
41 |Option + Cmd + R|Boot to macOS Recovery over the internet
42 |Cmd + S|Boot in Single-User Mode
43 |Cmd + V|Boot in Verbose Mode
44 |Option|Boot to Startup Manager, to pick other startup disks if available
45 |Cmd + Option + P + R|Reset NVRAM or PRAM
46 |Shift + Control + Option|Reset SMC
47 |F12 or trackpad button|Eject removable media
48 |Left Shift|Disable automatic login (if enabled)
49 |Shift|(at login screen) Prevent Login items / Previous Windows
50 |**Global Shortcuts**|
51 |Shift + Cmd + 3|Take screenshot of entire screen
52 |Shift + Cmd + 4|Take screenshot of selected area
53 |Shift + Cmd + 4, then Space|Take screenshot of selected window
54 |Cmd + A|Select all
55 |Cmd + F|Find
56 |Cmd + H|Hide current window
57 |Option + Cmd + H|Hide all other windows
58 |Cmd + M|Minimize current window
59 |Option + Cmd + M|Minimize all windows
60 |Cmd + W|Close current window
61 |Option + Cmd + W|Close all windows
62 |Cmd + O|Open
63 |Cmd + P|Print
64 |Cmd + S|Save
65 |Cmd + C|Copy
66 |Cmd + V|Paste (copy)
67 |Option + Cmd + V|Paste (cut) i.e. move copied item to current location
68 |Shift + Option + Cmd + V|Paste and match style
69 |Cmd + Z|Undo
70 |Cmd + ?|Help
71 |Cmd + , (Comma)|Open Preferences for current app
72 |Cmd + Space|Open Spotlight search
73 |Cmd + Tab|Switch to the next open app
74 |Cmd + ~~ (Tilde)|Switch to the next window in the current app
75 |Control + Cmd + Q|Lock the screen
76 |Shift + Cmd + Q|Log out
77 |Option + Shift + Cmd + Q|Log out instantly
78 |Cmd + Option + Esc|Force quit
79 |Cmd + Option + Eject|Activate Sleep mode
80 |Shift + Control + Eject|Put display(s) to sleep
81 |Cmd + Control + Eject|Quit all apps and restart
82 |Control + Eject|Choose from Sleep, Restart, and Shutdown options
83 |**Finder Shortcuts**|
84 |Enter|Rename selected file or folder
85 |Space|Open preview of selected file
86 |Option + Space|Open preview of selected file in fullscreen mode
87 |Shift + Cmd + G|Go to folder...
88 |Shift + Cmd + N|Create new folder
89 |Shift + Cmd + Delete|Empty the Trash folder
90 |Option + Shift + Cmd + Delete|Empty the Trash folder immediately
91 |Cmd + 1|Icon View
92 |Cmd + 2|List View
93 |Cmd + 3|Column View
94 |Cmd + D|Duplicate selected file or folder
95 |Cmd + I|Get info
96 |Cmd + J|View options
97 |Cmd + N|Open new Finder window
98 |Cmd + T|Open new Finder tab
99 |Cmd + [|Back
100 |Cmd + ]|Forward
101 |Cmd + Delete|Move selected item(s) to Trash
102 |Cmd + Up|Move up one folder
103 |Cmd + Down|Move down one folder
104 |Cmd + Option + I|Show Attributes Inspector
105 |Cmd + Control + N|With files selected, create a new folder and immediately move selected files into that folder