I accidentally installed a firmware update on my MBP while doing updates to a recovery drive I am creating. I was installing 10.8 on a partitioned drive with intent to install 10.8, 10.7 and some software tools. Before I knew it, the grey bar that installs firmware showed up on my screen and despite turning off the drive I was writing to and turning off the router, I could not stop it. At least I believe it updated the Mac itself and not the external drive. It was the firmware that allows an online recovery of system software.
I looked online, and there are some spotty answers of replacing it with a previous version.
Last edited by slolerner; 06/18/15 03:13 PM. Reason: More
Mid 2010 MacBook Pro 13"
2.4GHz, 750GB SATA HD, 8 GB RAM, OS 10.7.5
1 HDX1500 2TB Ext.HD, 2 HDX1500 1TB Ext.HD
HP Laserjet 6MP printing postscript via 10/100 Intel print server
Netgear WN2500RP Range Extender (Ira rocks!)
Linksys WRT1900AC Wireless Router
Brother MFC-9340CDW Color Laser
iPad Air
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