I have a MacBook Pro 13" Unibody Mid 2012 with a broken screen and I have a 2011 MacBook Pro 13" LCD laying around. Will...

Hi there, I have a 21.5" iMac Late 2009 A1311 and I was wondering what iMacs are compatible with the lcd screen that this...

The iMac turns on, plays the boot chime, and shows the normal white screen. After 1-2 seconds, the screen becomes black...

Hello @mrmp3 No not really. It's relatively similar to the previous models, but there are some things that are in different locations and different screws for some thing.

Hello @jameszhuang1987 Unfortunately, you cannot upgrade the CPU or even RAM in this model. However, you can upgrade the SSD. I have tried to do so with my iMac 15,1 but I couldn't upgrade anything but the SSD.

Hello there, If your keyboard is not responding, you can try connecting an external keyboard to the laptop or open the computer and check for the keyboard connection to the motherboard and make sure it is not loose.

@taza Here are a couple things you could try: (1) Try removing the RAM completely from the iMac (1.1) Does it still give you the same sequence? If so, then try each RAM module one by one to check if it works or not. Maybe one of them doesn't work which would cause the iMac to beep. (1.2) It's also possible if someone placed the RAM into the slot in the wrong way and damaged a slot, so try the other slots if you suspect one of them doesn't work. (2) Try SMC reset (2.1) Unplug the power cord, wait 15 seconds, attach the power cord, wait 5 seconds, then power on. (2.2) It may not work but it has helped for some people (3) If you see a loading bar, then the iMac is probably updating its firmware, which could take a while I hope this helps :)