i could not upgrade my macbook pro !

mohammed006 wrote:

I could not upgrade my MacBook Pro !!

There are at least 52 models of MacBook Pro's on the market released since January 2006...

Identify your MacBook Pro model

Big Sur macOS 11.4

https://support.apple.com/macos

Tech specs—Big Sur

• MacBook (2015 or later)

• MacBook Air (2013 or later)

• MacBook Pro (Late 2013 or later)

• Mac mini (2014 or later)

• iMac (2014 or later)

• iMac Pro (2017 or later)

• Mac Pro (2013 or later)

older macOS installer backups on this server:

https://support.apple.com/en-gb/HT211683

verify you are using the Safari browser to download/initiate the macOS links.

mohammed006 wrote:

I dowloaded the El Capitan but when i tried to install it, i got a message saying that i have to be on 10.11 version before installing

how to upgrade from 10.10.5 to 10.11 !!

You make it sound like you downloaded a point "update" which requires the OS X 10.11 El Capitan installed,

what you need from the link above is the full installer, upgrade link:

https://support.apple.com/kb/SP728?locale=en_GB

OS X El Capitan10.11.6

That model is hardware-constrained to running no higher version of macOS that 10.11.X "El Capitan." It is available from the last link Leroy provides above.