Last comment -I also suggest running the Apple built in diagnostic test before and after the upgrade. Avoid an issue not of your making, and then verify that everything is working after the upgrade. Basically, hold the D key during a restart. My non-functional led was not detected in the Apple diagnostic test.
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This guide is good, but could be improved dramatically with better pictures and more clear instructions on the direction to pull or not pull a connector. The section on the ram clips and rubber covers needs more details. I followed the suggestion to remove them before replacing the ram, and working directly with the metal clips. I then re-installed the rubber clips after the ram was seated and locked.
I suggest the level of difficulty is also raised to High, with a strong suggestion to let an authorized or more experienced repair show handle this memory upgrade.
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Just upgraded my Mac Mini 2020 from the Apple 8GB to 64GB. I purchased memory directly from Crucial and paid the extra $30 for 2 day delivery. The memory is the 64GB Kit (2x32GB) DDR4 3200 SODIMM CT2K32G4SFD832A. The CL is CL22, so I paid the extra $25 compared to a similar kit with CL19. Price as of August 2020 was $344.99 before tax and shipping.
The upgrade was not smooth. All the connectors, antenna, led, and power are tricky. My fail was with the led connector. I pre-read all the comments, but it would not come off, and I didn’t want to brute force it. My last and failed attempt was following a suggestion to pull the connector horizontal, instead of up. In my case, both wires came out of the connector. After researching repair options, I removed the connector clip from the board and placed a small piece of electrical tape on the ends of the exposed led wires. I will now ignore the non-working led and not risk further damage.
For my Mac Mini 2020, I used a T5 Torx. The T4 fits but is a tiny bit loser.
I attempted and failed at following these suggestions. When lifting up didn’t work, i tried to pull horizontally as suggested by Walter Jury. Unfortunately, I pulled the two wires from the connector, leaving the connector on the board. After the memory swap and reboot, i may consider a fix to the led light.