My cousin got a second-hand MacBook pro 13-inch (mid-2012) the same as mine.
Mine is updated to Catalina
My cousins is still at El Capitan
We are trying to update it to Catalina but for some reason it won't update because of this message:
This is the current safari in my cousins macbook
MacBook
The version of Safari for Mac OS X El Capitan should be 9.1.2, so I wonder
why the version is still 5.1.7, that version of Safari is for a much older OS X.
Safari gets automatically upgraded to the version correct for the OS.
Has your friend checked the App Store Updates page to see if there is an update for Safari there.
Where did your friend get this mac was it from a trusted source, something does not seem right.
As this mac can upgrade to the newer OS's like macOS Mojave 10.14 and macOS Catalina 10.15,
I would recommend you upgrade to macOS High Sierra 10.13 first.
For High Sierra, Mojave or Catalina,
Open Safari and click on this link,
How to get old versions of macOS – Apple Support
Go to the Download OS section and click on the OS you want to install.
Before upgrading make a full back up of your Mac.
Check that third party apps you use have updates available for the new OS.
Check that your printers/ scanners etc have updated drivers and software available for the new OS.
Connect your mac to your router via cable rather than rely on WiFi.
Do not use your mac while it is downloading
and do not use any other devices that share the same internet connection.
If the App Store says ‘Open’ then it is detecting a previous download of the install app
go to the Applications folder locate Install macOS ******.app.
Move it to the Trash, empty the Trash.
Restart, click on the link again, the App Store should say ‘Get' or 'Download'.
If you want to or are able to install Big Sur, open Safari and click on the link below.
How to upgrade to macOS Big Sur - Apple Support
If you are considering upgrading to Catalina or Big Sur be warned they do not support 32bit apps.
Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,
some updates may be free, some may be paid. Use this free app to discover which apps you have
are 32bit, https://www.stclairsoft.com/Go64/ then contact the developers of the software to see
if they are offering 64bit updates.
Stoyamix Said:
"Can't upgrade MacBook pro 13-inch (mid-2012) to MacOS Catalina from El Capitan: My cousin got a second-hand MacBook pro 13-inch (mid-2012) the same as mine. Mine is updated to Catalina"
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All is Compatible:
See Here: macOS Catalina is Compatible with these Computers - Apple Support
So, what to try...
A few thoughts to try
I. Clear the Temporary Internet Files:
II. Restart your Router:
III. Boot in Safe Mode:
[Hold Down: shift key, upon boot], In Safe Mode, Login Items do not run at login, certain preferences are set aside, and damaged system files are then reset. So, once booted in to Safe Mode, wait 30 seconds, and then boot up normally, attempting another update install.
IV. Try a New Admin User:
What happens when you create a new administrator user, and log into it? Do you still get this error? If not, then it is likely an error with the current user. If so, then it is likely an error with your Mac.
V. Reset your SMC and your NVRAM:
Sometimes changes (i.e. Installations) are made to the system and then settings (i.e. Networking) become corrupted, technically. So, reset both on your Mac. So, reset the SMC and reset the NVRAM or PRAM. It might take three tries. to fix this. So, be certain you have the time to do so.
Start With This:
VI. Use Ethernet:
Connect your computer to your router, using Ethernet, as it would be more reliable.
Can't upgrade MacBook pro 13-inch (mid-2012) to MacOS Catalina from El Capitan
