Unlike many here who have their own shop, I was a contract worker jumping around larger corporate customers configuring & fixing their equipment.
Apple’s move to system’s without USB-A ports forced a few of my customers to walk away from Apple gear as they were dependent on cypher keys which need to be directly attached to the system, not via a dongle or hub device which could be altered unbeknownst to the user (man in the middle attack risk). For my other big customers the lack of the ability to memorialize a systems drive or remove it so it could be destroyed was the other downfall for Apple.
So I’ve been working out of my home fixing systems as I could over the last few years.
Well, its finally happened! I’ve, fixed my last system for now. My arthritis has finally made it too hard to do much of anything delicate in the cold weather. Maybe in the late spring I’ll give it ago again.
I’m still helping people keep their systems running as long as they can be here on iFixit!
Apple uses their own blade SSD interface which is not the same as the M.2 versions. IF you bought a Fusion Drive’d system then you have the connector an SATA drive’d system only has the SATA drive and a SSD only system will have the needed connector. Review this great guide The Ultimate Guide to Apple’s Proprietary SSDs
Any SATA III (6.0 Gb/s) 2.5” SSD will work
Are you able to sneak the trackpad out at all? I’ve been able to push the trackpad out along the upper edge and then swing the bottom edge out in some. Otherwise you’ll need a heat gun to heat the area and use the proper screwdriver which you have chilled with freeze spray so it can cause the screw to contract.
It depends!
If you got a SATA drive’d model then that is correct! No PCI/e SSD slot.
But! If you got a Fusion Drive’d model, or one which has a SSD then your logic board DOES have the PCIe SSD slot
If you want something cheap and easy I would just swap out your current 2.5” SATA HDD for a SSD. If you want something that leverages the full ability of the system then you’ll want to replace the smalll blade SSD with something larger like a 512 or larger PCI/e/NVMe blade SSD, either using Apples custom SSPOLARIS drive or going with the OWC Aura Pro X2 blade SSD. I would keep the HDD alone! But setting up the new blade SSD as the systems boot drive and holding your apps as well as leaving the rest of the drive empty! That way your OS & Apps have elbow room for virtual RAM, Caching & scratch space.
Look again! There are three antennas.
You need to take off the Bluetooth antenna with the bottom plate.
The WiFi adapter is only a two antenna unit, there is no means to add an antenna as the silicon os just not there in the chip to support it
802.11ac was intro’ed in two phases (Wave). This system follows Wave-1 1.3 Gbit/s. using two antennas.
Your system only has two I/O ports a SATA connection and a PCIe connection. A Fusion drive uses both ports the SATA with a HDD and the PCIe with a small SSD for a cache drive.
You’ll need to break the Fusion Drive set and just forget about the PCIe SSD. You’ll just remove the HDD and slide in your Samsung EVO SSD in its place following this guide iMac Intel 21,5" EMC 2638 Festplatte austauschen
A Fusion Drive is really two drives! A SATA HDD and the PCIe blade SSD using both I/O ports your system offers.
So… You’ll need to break the fusion drive set and then you can replace the impish cache SSD to the 512 GB PCIe/NVMe blade SSD! Either a real Apple or OWC SSD designed for your system.
Here, you’ll want the SSD to be your boot drive with your OS & Apps (leaving 1/3 to 1/4 free for the OS & Apps to leverage for caching, Virtual RAM & scratch space) and your current HDD as the data drive.
There is little benefit and really no space to do it.
Sounds like you need a more powerful system! Time to move up to a Mac Pro (2012) or Hackintosh!
Just be careful! I’ve seen two systems where the socket was pulled fully off! So the logic board then needs repairs or replacing being just a bit too aggressive!
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