Chosen Solution
I have a macbook pro 5,3 15 inch unibody mid 2009 on Mavericks and the wifi is not working …The icon does not show ,I tried to create a new network in system preferences and the wifi option wasn’t available, I click network diagnostics and the wifi option was grey. I believe it’s not hardware because in the beginning wifi was good when my hard drive was wiped that’s when it occured
Hey! You must make sure drivers for wifi card is installed on your macbook fully, becosse problem after HDD replacing…
