Hey guys I'm new to this Forum and I was wondering if you guys could help me out with some issues I'm having with 3 Macbook pros that i recently got from my friend that runs a computer recycling business.
The Macbooks have an operating system on them that works fine but it is password locked and I am unable to get the passwords for it
I figured I would reinstall MacOS on them but am running into issues doing so.
When trying to boot to recovery I get a prohibitory sign and am unable to.
When trying to boot to internet recovery I get the same prohibitory sign.
When trying to boot to a mac installer usb I get the same prohibitory sign.
The only menu that I can boot into is the boot menu by holding down the option key upon booting the computer. 2 options are shown when I do this 1: MacOS(which works fine) and 2: Recovery-10.12 (which just goes to a prohibitory sign when I try it. When I plug in my installer USB it shows a third option 3: Install macOS Catallna. when trying the third option i get the prohibitory sign.
I was able to successively install ubuntu on one of these macbook pros just fine. I only did the one to see if it would work because I want to have MacOS on these machines.
These macbooks measure 14.5 inches wide by about 10 inches and the model number for all three is A1286. After looking up the serial number I found out that these are mid 2009 macbook pros
Any input would be greatly appreciated as I have been struggling with this for a while now.
The Macbooks have an operating system on them that works fine but it is password locked and I am unable to get the passwords for it
I figured I would reinstall MacOS on them but am running into issues doing so.
When trying to boot to recovery I get a prohibitory sign and am unable to.
When trying to boot to internet recovery I get the same prohibitory sign.
When trying to boot to a mac installer usb I get the same prohibitory sign.
The only menu that I can boot into is the boot menu by holding down the option key upon booting the computer. 2 options are shown when I do this 1: MacOS(which works fine) and 2: Recovery-10.12 (which just goes to a prohibitory sign when I try it. When I plug in my installer USB it shows a third option 3: Install macOS Catallna. when trying the third option i get the prohibitory sign.
I was able to successively install ubuntu on one of these macbook pros just fine. I only did the one to see if it would work because I want to have MacOS on these machines.
These macbooks measure 14.5 inches wide by about 10 inches and the model number for all three is A1286. After looking up the serial number I found out that these are mid 2009 macbook pros
Any input would be greatly appreciated as I have been struggling with this for a while now.
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super happy cause I've been working on this for some time now. I'm sure I will be back in this forum another time and am greatful for all your help.