Unapproved Caller - SecurityAgent Fix

Il Mio Problema

Macbook Pro mid 2009 kept having a recurring problem with and Unapproved Caller/SecurityAgent Error message. After searching online and on and off attempts to fix it for a few months, I came across this discussion:

https://discussions.apple.com/message/25...

La Mia Riparazione

I ordered the cable. Installed it with the ifixit instructions.

Wallah! This unexpected fix has solved my problem.

Il Mio Consiglio

In hindsight, next time I would order the cable with the bracket attached, as that was the most challenging part of the repair - working with the small bracket and cable to retro fit the old bracket onto the new cable.

For a guy with bad eyes, an addition to the instructions that explains how to remove the old bracket from the cable and attach the new one would be helpful.