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- #WHY WONT MESSENGER ON MAC LET ME LOG IN MAC OS X#
- #WHY WONT MESSENGER ON MAC LET ME LOG IN SERIAL NUMBER#
#WHY WONT MESSENGER ON MAC LET ME LOG IN MAC OS X#
Works for most physical Mac OS X devices and VMware Workstation installations. 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. That should fix any issues with iCloud sign in and use of its related services for El Capitan.
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#WHY WONT MESSENGER ON MAC LET ME LOG IN SERIAL NUMBER#
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). Please do NOT use this tool if you have Apple Care or would like to preserve your Apple Warranty: Use the following application to change this ( if you can't go to Apple for any reason, and aren't worried about voiding the device's warranty).Have them set your hardware Serial Number, seeing that they were supposed to do this when they were done servicing your machine. Either use your Apple Care/Warranty to contact Apple.If you have either a NULL or invalid Serial Number, please do one of the following: Check this in your Mac’s ‘About’ section.
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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). If you are using the correct username and password combination and are still receiving the 'Invalid Login' error, you may need to delete your temporary internet files, as your browser may have saved an incorrect or outdated password. Sudo launchctl load -w /System/Library/LaunchDaemons/įinally, please check to make sure that your OS X device has a (valid) Serial Number. Again, use a phone or computer that you have previously used to sign in. Don’t add a plus sign or zero in the beginning. We’ll then ensure that the proper LaunchDaemons are running - in this case, Push Notifications. Enter country code before the mobile number. 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.