apple

TRIM support for 3rd-party SSD on Yosemite 10.10.4

Apple supports 3rd-party SSD in its new update Yosemite 10.10.4 but it’s not enabled by default

Please follow this instruction to enable the TRIM support:

Save your works first because it will reboot the computer in order to complete.

1. Open Terminal

2. Type this command: sudo trimforce enable > Enter > Input your password if needed

IMPORTANT NOTICE: This tool force-enables TRIM for all relevant attached
devices, even though such devices may not have been validated for data
integrity while using TRIM. Use of this tool to enable TRIM may result in
unintended data loss or data corruption. It should not be used in a commercial
operating environment or with important data. Before using this tool, you
should back up all of your data and regularly back up data while TRIM is
enabled. This tool is provided on an “as is” basis. APPLE MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
REGARDING THIS TOOL OR ITS USE ALONE OR IN COMBINATION WITH YOUR DEVICES,
SYSTEMS, OR SERVICES. BY USING THIS TOOL TO ENABLE TRIM, YOU AGREE THAT, TO THE
EXTENT PERMITTED BY APPLICABLE LAW, USE OF THE TOOL IS AT YOUR SOLE RISK AND
THAT THE ENTIRE RISK AS TO SATISFACTORY QUALITY, PERFORMANCE, ACCURACY AND
EFFORT IS WITH YOU.

3. Are you sure you wish to proceed (y/N)? y > Enter
4. Your system will immediately reboot when this is complete.
Is this OK (y/N)? y > Enter

Source: AppleInsider

Deregister iMessage

“You may need to turn off iMessage if you are now using a non-Apple phone and can’t get SMS or text messages someone sends you from an iPhone.”

Go to this link, https://selfsolve.apple.com/deregister-imessage

Follow the instruction on the page.

Hope this helps,
Ricky


Source: http://support.apple.com/en-us/HT6397

Remove purchased information on M4A files in iTunes

This tweak shows you how to remove the purchased information on songs brought from iTunes. (The songs could be a collection from different sources and somehow you have it.)

This is one of the reasons causes the pop-up asking usernam/password on your iPod touch/iPhone/iPad when you restore those devices from a backup WITH the music collection you have. For example, this one from Apple forum.

This is how you do it,

Open iTunes and left-click on your Music library. (I think the default setting when you get the latest version of iTunes is Music library already. If you see your songs already, you’re ready to jump to the next step)

Right-click anywhere on the columns showing Name, Time, Artist, Album,… look for Kind and left-click on it. Make sure you left-click on Kind column to sort all your songs by Kind.

After you sort by Kind, you will see if it’s a purchase ACC files or just the ACC files.

1

Sort by Kind

Right-click on the song you would like to remove the purchase information. If you want to check if that song is yours or somebody else, click on Get Info to see that info.

2

Check song’s info.

3

Example of the purchase info

If you would like to remove that info, left-click on Create ACC version instead of Get Info.

4

The new ACC file without purchase info will be in your Music folder. The default ACC quality is iTunes Plus which is equivalent to 256kbps. You can adjust this quality in iTunes’ Preferences (Edit > Preferences > General tab > Import settings). Pick option you have in there, higher that 256kbps is good but the size of ACC files will be increased).

5

Purchase info. is gone now. 😛

That’s all. I hope you can follow my steps.