Gently bend the Jimmy outwards to pry the crack open a little larger and lift the lower housing up a small amount.
There are several plastic clips on the lower housing that fit into a channel in the aluminum top housing. Your goal is to use the Jimmy to push these clips inward enough to free them from the channel, while gently pulling up on the lower housing.
In the next few steps you will be removing the AirPort and Bluetooth antennas (shown in red) from the internal frame. Be very careful, as breaking the brackets will require replacing the internal frame.
We will first remove the AirPort antenna, located in the lower left corner of this picture.
Remove the following four screws securing the internal frame to the bottom housing:
Three 6.7 mm Phillips #00 screws
One 9.5 mm Phillips #00 screw
The screw in the lower right corner of this image is recessed deep in the internal frame and longer than the other three screws. A flashlight and a thin screwdriver aid in removal.
Lift the internal frame off the bottom housing, starting at the rear edge, until you feel the concealed edge connector on the motherboard disconnect. Then lift straight off, minding the bluetooth and 802.11 antenna cables.
When reassembling, the wifi antenna wire routes to the inside of the vent and then over the top of the vent.
Simultaneously pull the tabs on each side of the RAM chip away from the center of the chip. These tabs lock the chip in place and releasing them will cause the chip to "pop" up.
Pull the RAM chip directly out from its connector.
If there are two RAM chips installed, repeat the above procedure for the second chip.
if you are upgrading to 8g it may not work. my system would only recognize a mismatched 4g and 2g for 6g. even the 2g boost from 4g made some speed improvement
Wife has the Late 2009 Macmini (MM) originally with 2GB. We upgraded to 4GB a couple of years ago, and it has been running very slow with Yosemite (10.10.5) for far too long.
Ordered the 8GB upgrade kit and set for 2 day delivery. Bummer it came in 1 day via UPS. Thanks for the surprise iFixit. The tools were unnecessary for me (as I have most), but they are totally outstanding and the real deal. So I decided to use them all. ;)
The upgrade took about 15 min (even for this experienced Mac repair guy). Fired it up and the MM recognized all 8GB. It doesn’t scream, however, it is probably 2-3 times faster and can handle the amazing multi-takser that is my wife; 16 Safari pages, Mac Mail, Calendar, and 7 other apps open at all the same dang time. Thanks iFixit for the absolute best in repair universe parts, service, tech commitment, and guides.
It worked!!! Love it!!! The websites installation guide was very easy to understand. However, the small screwdriver that was shipped with the kit didn’t fit the screws for step-12, almost stripping the screws. luckily, I had another small screwdriver (for glasses) that worked.