HI,
Google Translate gives me this.
Title "Login to iMessage failed."
Post
"A suffering subject to an error message that offers no solution.
Apparently, you can google for hours, many of the same problem but no solutions
Migration to OSX Lion iMac27" next verschundenem Bluetooth bones and other problems, this seems not to be the last"
Most likely your Serial Number is missing
Höchstwahrscheinlich Ihre Seriennummer fehlt
Go to the Apple Menu > About this Mac and click the OS Version Line twice
Öffnen Sie das Apple-Menü > Über diesen Mac und klicken Sie auf die OS-Version Linie zweimal
This should show the Serial Number.
Dies sollte zeigen die Seriennummer.
If it is missing you need an Apple Store or Apple Authorised Service Provider to replace it for you.
Wenn diese fehlt, benötigen Sie einen Apple Store oder Apple Authorized Service Provider, um es für Sie zu ersetzen.
9:51 PM Sunday; February 10, 2013
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
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
"Limit the Logs to the Bits above Binary Images." No, Seriously