How do I erase an old MacBook Pro?

kathleen30 wrote:

No chip no easy system erase functions

[Re-Titled by Moderator]

Original Title: Erasing old macbook pro

ref

What to do before you sell, give away, trade in, or recycle your Mac - Apple Support

kathleen30 wrote:

..... no easy system erase functions

In the document linked by Leroy. go to the section on "If you can’t use Erase All Content and Settings" and follow the steps. I had to do this with an old iMac recently. It is not as quick as the "one button erase" bit it worked fine.