How to fix the iMessage login problem on your Hackintosh (with Chimera)

For the past few weeks, Hackintoshes have been unable to log into the Messages app (better known as "iMessage") on OS X Mountain Lion. Last week, we showed you how to fix these problems with Clover bootloader, an alternative to the more popular Chameleon and Chimera bootloaders for Hackintoshes. However, if you want a slightly simpler fix, you're in luck: we can now fix the problem using Chimera bootloader instead. Read past the break for details.