Q: unable to login to iMessage on Yosemite - can login to FaceTime though
Yesterday, I upgraded to El Capitan, and had to downgrade back to Yosemite due to stability problems that seem related to Early 2009 hardware with multiple video cards. Downgraded to Yosemite (my previous config before ElCapitan, using Time Machine and all works fine except imessage. I can't login using my App Specific Password. Same password DOES work with FaceTime. iCloud calendaring, mail, contacts, faceTime, etc do work. Just can't login to iMessage. Created new app-specific password to see if make difference. Works with FaceTime, but not with imessage. Saw suggestion to switch timezones then switch back then reboot. Tried that but didn't work. I was able to login on iMessage before the upgrade and downgrade so don't know if the upgrade triggers something in icloud on Apple's end or not.
Running Yosemite 10.10.5 on Mac Pro (Early 2009).
Mac Pro, OS X Yosemite (10.10.5), Early 2009 Mac Pro
Posted on Nov 27, 2015 11:33 AM
Hi,
Try a NVRAM reset.
Hold down CMD+ALT+P+R at Start up until you have heard three Start Up bongs.
Then let the Start up continue normally.
9:11 pm Friday; November 27, 2015
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad
Posted on Nov 27, 2015 2:01 PM

