It worked but after an update within Ubuntu, it is unable to boot even with the recovery key operations. So, to make a long story short, I have a late-2011 Macbook which has its battery/OS replaced due to sluggish performance with Catalina and even Mojave. No dong like it used to do even with Ubuntu installed.

I only get the white indicator LED, the sound of the DVD drive powering on and a blank screen. I tried getting into recovery, reseated the ram/battery, even tried different down the CMD + Option key combinations like CMD + R and even holding down Option before plugging in the magsafe connector and powering on. But it was after one recent update and a reboot that the system stopped booting again. Things worked fine for a bit as I updated individual drivers (audio, video, wi-fi and so on). My mac was much more responsive than before and

With B S Magnet’s and other’s help, I found out my system has a 32-bit EFI and following a video from Demonic Sweaters, installed an older version of Ubuntu and then upgraded it to a later version (18). I looked for other options to see what would run better and so for a time, I tried to see how well it would work with Ubuntu. Unfortunately, it stopped booting until a couple of months ago, after which it ran very slowly even after reseting the DRAM and going into recovery mode (even recovery mode’s GUI was sluggish to navigate through and reformatting/resetting the system didn’t improve performance at all). I know the MacBook I currently have is notorious for its finicky GPU, but with the help of a couple Dosdude1 videos, I was able to disable the GPU and get Catalina running on it.

I was introduced here by B S Magnet because I was told you folks are a community around PowerPC/early Intel-based Macs that are no longer supported by Apple. Hi, I just wanted to introduce myself by asking for help.

Apple macbook pro 2011 wont boot up