I switched adapters, thinking that the adapter had gone bad. So, I plugged it in but there was no light on the magsafe power adapter. I thought maybe the battery was completely discharged. Your MBP won't run Big Sur, so you're already falling into 'legacy' territory. MacBook Pro (13 inch, Mid 2012) SMC, Removing battery, etc.not working. The 'best' OS is the one that lets you run the apps that you need, while supporting your hardware. #Macbook pro 13 inch mid 2012 service battery how to#Test booting into Safe Boot Mode (hold down shift at boot), or running in a brand new user account that doesn't have all the Login Items and Launch Agents of your existing account. Changing the Battery in a mid-2012 Macbook Pro David Artiss says: 13th February 2017 at 8:27 am time ago, I detailed how to replace the hard drive in a mid-2012 Macbook Pro and, now, after 4. Or it could be that the slowness is caused by software: things you've installed, possibly for a previous OS, that now don't play well on Catalina. If you haven't already maxed it to 16 GB, do so. Not enough RAM could also be a factor (combined with swapping onto slow storage media). #Macbook pro 13 inch mid 2012 service battery free#(If you've already done that, then make sure the SSD has at least 20% free space.) If you still have the original hard drive, then that's the likeliest cause of slowness, and it should be replaced by an SSD - to improve reliability, if nothing else. (Indeed, one of the reasons they cut off older Macs is because the new OS doesn't run well.) Apple MacBook Pro 13 inch Model year: Mid 2012 Produced: May 2013 2.5GHz Intel Core i5 processor 8GB RAM RAM 120GB SSD boot drive 500GB HDD storage drive Intel HD graphics 4000 1536MB video card 178 battery cycles No dents or major damage. Macbook 13-inch Batteries Macbook Pro (Silver) Batteries Macbook Air Batteries Macbook. The store will not work correctly in the case when cookies are disabled. If Apple says an OS will run on that Mac, that means it should run fine. Buy Battery For Apple MacBook Pro 13'A1278 Genuine Laptop Batteries / AC Adapters A13 2010 2011 2012 with fast shipping and top-rated customer service. Mac Parts Online also have mail-in Mac parts repair service. Your question is based on the premise that it is the OS that is causing the slowness.
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