Works for most physical Mac OS X devices and VMware Workstation installations. That should fix any issues with iCloud sign in and use of its related services for El Capitan.
You'll need to generate a valid, new Serial Number that is NOT currently in-use: Now, for those of you using a virtual machine, please go here to complete the third step (Serial Number reset). To do this, go to your phone or tablet's app store (example: Apple App Store, Google Play Store) and download any updates. Please do NOT use this tool if you have Apple Care or would like to preserve your Apple Warranty: If you're having trouble logging into Messenger, please make sure that you have the most up-to-date version of the Messenger app installed.
After entering the serial number, return is possibility of logging on to the App Store, iTunes Store, iCloud and iMessages. Find tool 'Blank Board Serializer' somewhere in the Internet Create a bootable disk or USB stick and use it. We’ll then ensure that the proper LaunchDaemons are running - in this case, Push Notifications. Note: For the Chrome version of LINE, click the down arrow next to LINE on the top of the screen. Find the serial number on the chassis of your Mac. 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.