niallb01

Q: Older IMAC with El Capitan


I have an older Imac( the one with the last of the built in dvd). I have just updated my El Capitan system as prompted and it froze half way through installation.

I waited and waited (8 hours )  then hard booted. It did the same. I followed a thing online which said to Mac Key +P+R and to let go at second start up music. This increased start up volume and introduced coloured horizontal lines across top of screen then the dreaded white screen re appears. Help please !!!!

iMac, OS X El Capitan (10.11.5), I think !?!

Posted on Jul 4, 2016 8:31 AM

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Q: Older IMAC with El Capitan

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