![]() ![]() ![]() If you have either a NULL or invalid Serial Number, please do one of the following: Check this in your Mac’s ‘About’ section. Whether it’s real or virtual machine, the Serial must be less than 12 chars - otherwise, iCloud -based services like FaceTime and iMessage won’t be able to sign in (or will ‘hang-up’ at sign in attempt). Sudo launchctl load -w /System/Library/LaunchDaemons/įinally, please check to make sure that your OS X device has a (valid) Serial Number. We’ll then ensure that the proper LaunchDaemons are running - in this case, Push Notifications. We’ll start by deleting the following file (admin permission required): Validate/rewrite (hardware) machine details if required.(Re)Start the iCloud service and/or its required related Daemons.Wipe the existing, problematic settings file(s), and force OS X to reproduce valid ones in there place.The full-out solution is a three-step process, which will force OS X to do the following: The solution will sound simple - but it's not. As such, that will not be posted here, for succinctness.Īlso, while NVRAM (non-volatile RAM) does save certain settings and parameters for long-term, iCloud settings don't appear to be among the settings saved in NVRAM. While I will mention a link to a solution for virtual machine users as well, that is not the primary objective of this post. ![]() NOTE: This solution is primarily meant for users of physical Apple devices, such as MacBooks, iMacs, Mac Pros, etc. ![]()
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