· Apple Footer. This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the ...
On Tuesday, Apple released the latest update to OS X with version 10.10.4, which among other improvements adds the support of TRIM for third-party SSDs.. The new “Trimforce” command can be executed from the OS X terminal and allows users to enable TRIM on their SSDs without having to download and install anything or resort to software “hacks”.
If you install an SSD on a Mac, it's important to make sure that the TRIM command is running on the machine. Screenshot by Dong Ngo If you have replaced the hard drive on your Mac with an SSD ...
· Either way, the firmware isn't the problem on old drives, the lack of TRIM is. Run a checkdisk to see if you have issues that can be repaired. 1. Click Start. 2. In search window type 'cmd' and ENTER. Right click and select 'Run as administrator'. 3. Type at the command prompt CHKDSK /P and press ENTER to scan the disk. 4.
· Before the SSD drive can be switched to factory access mode (otherwise known as Factory Mode, Safe Mode, Recovery Mode etc.), one must first ensure that the SSD controller does not boot in Standard mode when powered on. This can be achieved by blocking access to NAND flash chips that contain SSD firmware and system areas.
· I've seen it mentioned a few times that firmware updates don't always work when booting from non-Apple storage. Well, I took a moment to check the firmware on my 'MacBook Pro (Retina, 13-inch, Early 2015)', the MacBookPro12,1 A1502 model, which had its Apple SSD die out of warranty and which now carries a Samsung 970 EVO Plus.
If you have an OWC SSD, you don’t need TRIM setup. As mentioned in the blog: — “In fact, enabling TRIM could actually hurt the performance and reliability of your OWC SSD, rather than help it.” — “Our in-house testing has also shown that the TRIM Enabler hack has proven to be unreliable.
· TRIM is a command with the help of which the operating system can tell the solid state drive (SSD) which data blocks are no longer needed and can be deleted, or are marked as free for rewriting. In other words, TRIM is a command that helps the operating system know precisely where the data that you want to move or delete is stored.
The guy on spritesmods had dumped the firmware by de-soldering the flash chip and dumping it manually, the only problem is the red circle is were the flash chip should be (thanks obama). Above the red circle is a Marvell 88i8846-TFJ2 ARM processor which has internal flash.
Ever since the release of OS X 10.6.8, Apple has been selectively enabling the TRIM command for SSD's in OS X. This support continues on in Mac OS X Lion, as well as Mountain Lion, and even OS X Mavericks, but as many have noted, it only seems to work for Apple SSDs. Here's how to enable TRIM across the board: